REVIEW · OAHU
Waikiki Two Tank Guided Scuba Diving Adventure: Certified Diver
Book on Viator →Operated by Ocean Therapy Charters · Bookable on Viator
Small groups make the ocean feel personal. This Waikiki two-tank scuba outing runs from Ala Wai Small Boat Harbor and focuses on southern Oahu’s reefs and historic shipwrecks, guided by PADI professionals for a pace that fits you.
I particularly like two things right away: the trip is capped at 6 certified participants, so you get real attention in the water. I also like that your day includes the practical stuff—gear, tanks, weights, and plenty of onboard drinks and snacks—so you can focus on the experience.
One consideration: it’s certified scuba only, so if you’re still working on your certification, you’ll need a different Waikiki option instead of this one.
In This Review
- Key highlights at a glance
- Getting to Ala Wai: the “minutes-from-Waikiki” advantage
- Two tanks with a small group: what it feels like in real life
- Gear, weights, and the onboard comfort perks
- What to know about the certification requirement
- Underwater plan: reefs and historic shipwrecks along southern Oahu
- How to think about “pace” during the day
- Wildlife sightings: what you might see off Waikiki
- Your guide experience: professional, and sometimes very personal
- Price and value: is $249 a good deal?
- Who should book this (and who should skip it)
- Practical tips to make your day smoother
- Should you book Waikiki Two Tank Guided Scuba? My take
- FAQ
- Is this scuba experience for certified divers only?
- How long does the experience take?
- Where do we meet for the tour?
- What happens at the end of the experience?
- What is included in the price?
- Do I need to bring my own scuba gear?
- How big is the group?
- What information do I need to provide before booking?
- Is parking included?
- What if the weather is poor or the minimum number of travelers isn’t met?
Key highlights at a glance
- Max 6 people keeps the underwater time calmer and more personal
- Two-tank format means you get more than one underwater session
- Ala Wai Small Boat Harbor puts you minutes from Waikiki hotels
- Snacks and drinks included during the cruise
- Reefs plus historic shipwrecks for variety in what you see
- PADI professional guidance tailored to your pace and skill level
Getting to Ala Wai: the “minutes-from-Waikiki” advantage

The meeting point is Ocean Therapy Charters at 1651 Ala Moana Blvd, Front Row Slip 65 in Honolulu. If you’re staying in Waikiki, this location is a big deal: you spend less time on the road and more time planning how you want to use your limited tank time.
The timing is also built for a full morning or afternoon block: the whole experience runs about 4 hours and returns to the same meeting point. That structure matters in Waikiki, where logistics can eat your day fast.
Because it’s near public transportation, you also have options beyond rideshare or parking. Still, note that parking is not included (the tour lists $1 per hour), so if you’re driving, keep that line item in mind.
You can also read our reviews of more guided tours in Oahu
Two tanks with a small group: what it feels like in real life

This is for certified SCUBA participants only. Once you meet that requirement, the small group cap of 6 is the core reason I’d take this over a bigger boat schedule. With fewer people, you’re less likely to get rushed on the surface, and more likely to get clear, individualized coaching when conditions shift.
Two tanks typically means two separate underwater sessions, which is valuable for two reasons. First, you’re not spending all your time in one place with one set of sights and conditions. Second, it reduces the pressure to make every minute count, since you have another tank to work with.
The day is guided, not generic. The PADI-trained team is set up to tailor the plan to your pace and skill level, which is exactly what you want when you’re mixing buoyancy practice, sighting opportunities, and comfort in open water.
Gear, weights, and the onboard comfort perks

Your included items are very straightforward and genuinely useful: scuba gear, tanks, and weights, plus bottled water, sparkling water, juice, and pineapple during the cruise. Snacks are included as well.
That matters more than it sounds. In Waikiki, it’s easy to burn time hunting for water and food before a boat trip. Here, you’re already covered, so you can show up, get sorted, and stay hydrated—especially important when you’re in a wetsuit or spending time on open decks.
You’ll also be asked for practical details ahead of time: your height, weight, and shoe size for wetsuits, BCD, and fins. You also need your scuba certification info (agency name, certification level, and cert#). This reduces the time wasted fitting gear and helps the team get you into the water smoothly.
What to know about the certification requirement
Because this is certified-only, do not assume last-minute flexibility. If you’re not already certified, you’ll want to look at a different Waikiki product that includes instruction from the start. For this specific outing, you should plan as if your gear fitting and check-out will be for an experienced, certified participant—not a first-timer.
Underwater plan: reefs and historic shipwrecks along southern Oahu

The core focus is the southern shoreline of Oahu—exploring colorful reef areas and historic shipwrecks. That combination is a smart choice for certified participants because it gives you two different kinds of structure to look at: living habitat on one side and man-made history on the other.
Reef areas are often where you can expect lots of fish activity and chances for close-up sightings as you move through the water. Shipwrecks add variety in shape and depth options, which can keep the session from feeling repetitive even if the overall conditions are similar.
Your guide team is set up to match your plan to your pace and experience level. That usually translates into real-world comfort: you can spend time where you’re seeing things, rather than constantly rushing to keep up.
You can also read our reviews of more scuba diving tours in Oahu
How to think about “pace” during the day
Even with a small group, different certifications and comfort levels can change how the plan works underwater. I like that the tour explicitly states that guidance is tailored to your pace and skill set. That means if you’re comfortable staying controlled and slow for wildlife, you’re less likely to feel like you’re dragging the group.
It also helps if you’re experienced but want to focus on specific skills like buoyancy control or relaxed breathing. You’ll get more value out of your tanks when your guide isn’t treating everyone as identical.
Wildlife sightings: what you might see off Waikiki

The outing is positioned for wildlife viewing, including Hawaiian green sea turtles, octopus, tropical reef fish, dolphins, and reef sharks. Nature does what it wants, but the point is that the operators have built the experience around those common sighting opportunities in these waters.
I like wildlife-focused outings for certified participants because you’re not just “checking off” underwater time. If you’re calm and aware, the animals are part of the navigation and pacing—your buoyancy and trim become how you earn those sightings.
A realistic tip: if you’re hoping for a specific animal, stay steady and keep your expectations flexible. You’ll often get more sightings by being patient and moving smoothly than by trying to chase excitement from one spot to the next.
Your guide experience: professional, and sometimes very personal

One review highlight that’s hard to ignore: a guide named Mike is described as a true professional, and he did not cancel even when the group was just one participant on Easter. That tells you something important about how the day can run—attention can stay high even if the manifest is small.
This aligns with the maximum group size of 6. A small boat and small group cap can turn into a more instructor-like day when numbers are low, and that’s especially good if you want reassurance, clear communication, and a chance to ask questions without feeling rushed.
If you’re the type who learns best when you can slow down, ask about what you’re seeing, or request a more comfort-focused plan, this is the kind of operation that can meet you where you are.
Price and value: is $249 a good deal?

At $249 per person, this isn’t a budget impulse buy—but it also isn’t overpriced for what you actually get.
Here’s the practical math:
- You get two-tank scuba time (built into the product name)
- You get gear, tanks, and weights included
- You get onboard snacks and drinks
- You get PADI professional guidance with a cap of 6 people
In Waikiki, charter and equipment costs add up fast if you’re piecing it together on your own. Since the tour includes tanks and weights, you’re not paying extra for the parts that usually blow up the final bill.
Parking is the one listed add-on cost: $1 per hour. If you’re taking rideshare or using public transportation, that won’t matter much. If you’re driving, just plan to factor it in.
My bottom line: $249 feels like solid value when you’re comparing to the total cost of a two-tank day plus gear plus a guided, small-group format. The small cap is especially important because it changes the quality of your time, not just the convenience.
Who should book this (and who should skip it)

This fits best if you are:
- Already certified and comfortable with two-tank planning
- Interested in both reefs and historic shipwrecks
- Looking for a calmer experience with a max group size of 6
- Want wildlife chances around turtles, octopus, fish, dolphins, and possible reef sharks
It may not be the right choice if:
- You’re not certified yet and want full beginner instruction
- You prefer a large-group party vibe (this is intentionally small and more relaxed)
- You are uncomfortable with water-based logistics that require you to submit measurements and certification details ahead of time
You should also consider the stated fitness guidance. It’s listed for travelers with moderate physical fitness. If you know your mobility is limited around getting in and out of boat gear or handling a wetsuit setup, it’s worth thinking ahead.
Practical tips to make your day smoother

A few prep items will save you stress:
- Send your required measurements: height, weight, and shoe size for wetsuit, BCD, and fins
- Have your certification paperwork ready: agency name, level, and cert#
- Plan for a good-weather dependent outing. If conditions aren’t right, the operator may offer another date or a full refund (based on the cancellation terms)
- Bring your own judgment for what “moderate fitness” means for you. The experience is short, but it’s still a boat day with water time
On the day itself, keep it simple: hydrate before you board, eat something light if you need it, and treat the surface coaching as part of the experience. The more you listen during prep and gear checks, the easier your underwater time will be.
Also, this activity is in English, so if you want a smooth back-and-forth with your guide, that language match matters.
Should you book Waikiki Two Tank Guided Scuba? My take
Book it if you want a small-group, certified-only scuba experience out of Waikiki that’s built for both reefs and historic shipwrecks. The biggest value is the combination: two-tank time plus included gear plus guidance, all on a trip capped at 6.
Skip it if you’re not certified. Since this outing is for certified scuba participants only, you’d waste time trying to adapt. In that case, look for a Waikiki option designed for first-timers.
If you do book, I’d recommend locking it in early. The average booking window is about 24 days in advance, which usually means the best dates can move.
Bottom line: for the right scuba-certified person, this is a clean, practical way to get real underwater time without turning your day into a logistics project.
FAQ
Is this scuba experience for certified divers only?
Yes. This activity is for certified SCUBA participants only.
How long does the experience take?
It runs about 4 hours (approx.).
Where do we meet for the tour?
You meet at Ocean Therapy Charters, 1651 Ala Moana Blvd, Front Row Slip 65, Honolulu, HI 96815.
What happens at the end of the experience?
The activity ends back at the meeting point.
What is included in the price?
Included items are bottled water, sparkling water, juice, pineapple during the cruise, dive/scuba gear, tanks, weights, snacks, and guided scuba tours with the PADI professional team.
Do I need to bring my own scuba gear?
No. Dive/scuba gear, tanks, and weights are included.
How big is the group?
There is a maximum of 6 travelers.
What information do I need to provide before booking?
You need to provide your height, weight, and shoe size for wetsuits, BCD, and fins. You also must provide your scuba certification agency name, certification level, and cert#.
Is parking included?
No. Parking is listed as $1/hr.
What if the weather is poor or the minimum number of travelers isn’t met?
The experience requires good weather. If it’s canceled due to poor weather, you’ll be offered a different date or a full refund. If it’s canceled because the minimum number of travelers isn’t met, you’ll be offered a different date/experience or a full refund.



































