Top picks for Onna Water activities

Discover 52 Water activities in Onna on Trip.com, updated October 24, 2026, with experiences lasting from 1 to 5 hours. Find the perfect adventure for your day!

From €23.42 per person, with an average total of €38.26. Choose the option that suits your plan.

With 344 verified reviews, Water activities Onna boast an average rating of 4.4.

This week's most popular Water activities: "Okinawa Japan Blue Cave diving/snorkeling experience: English & Japanese-speaking coach | shore entry without seasickness", with 283 reviews and a 4.8 rating.

Now on Trip.com: "Okinawa Blue Cave Diving Half-Day Tour: English/Japanese Instructors/Equipment Included/Shore Entry No Seasickness", a 2-hour adventure in Onna!

The next available day tour departs on October 25, 2026. Book now to secure your spot!

Onna Water activities usually take about 2 hours — perfect for a relaxed, immersive experience!

90% of Onna Water activities now offer English-speaking guides

October is the perfect time to visit Onna! Choose from 52 available day tours, including seasonal favorites like Okinawa Japan Blue Cave diving/snorkeling experience: English & Japanese-speaking coach | shore entry without seasickness.

Your trip, worry-free! All day tours are run by licensed suppliers with verified reviews, and many include free cancellation before departure.

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52 results for Onna Water activities

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Reviews/Trip Moments

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Reviews: Okinawa Japan Blue Cave diving/snorkeling experience: English & Japanese-speaking coach | shore entry without seasickness
Guest User2026-08-08
We went snowdiving, and the instructor kindly explained everything. We also added GoPro recording on the spot (highly recommended!!). They show Korean YouTube videos for basic explanations. I was worried because the instructor only spoke English and Japanese, but surprisingly, there were no communication issues. Since it was our first time, they took extra care of us, so we were able to enjoy a safe and fun dive!
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Reviews: Okinawa Blue Cave Diving Half-Day Tour: English/Japanese Instructors/Equipment Included/Shore Entry No Seasickness
Guest User2026-09-26
A fantastic experience! The lady who greeted us was very friendly and helpful. The snorkeling instructor was also very patient. Since several of us were first-timers, he was very gentle and guided us through the snorkeling session, taking into account our fear.
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Reviews: Half-day tour to Okinawa blue cave with self-assembly (multiple departure time slots) - optional scuba diving/snorkeling from Onna
Guest User2026-10-09
It was unfortunate that we cannot visit Blue Caves again for our 2nd Okinawan trip but they sure made up for it with an equally beautiful deep sea diving session around the area.
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Reviews: Okinawa Blue Caves, Japan [Meet at Onna Village, Experience diving/Snorkeling|diving equipment provided
Guest User2025-05-17
First of all, the team was absolutely fantastic. From booking, reception, communication, preparation, departure, experience, and conclusion, their capabilities and service attitude were impeccable. They even took photos for us and were very patient with our guidance. If you suffer from severe motion sickness, I recommend buying motion sickness medication. I didn't buy any, and while the boat ride was fine, the constant splashing of waves made me feel nauseous. After telling the staff who were guiding us on snorkeling, they immediately took me back to the boat to rest. The equipment they provided was also very complete. They had thick wetsuits, so the water wasn't cold at all. They had diving shoes in various sizes, swimming goggles, and they asked about any pre-existing medical conditions or past medical history to determine if we were suitable for diving. There were private shower rooms and changing rooms, offering good privacy! Whether you want to dive or snorkel, you can do it!
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Reviews: Okinawa blue cave diving half-day tour · optional snorkeling/diving/shore entry no seasickness
Guest User2026-08-16
A very good experience. The shop owners were very helpful and friendly, answering all my questions. The accompanying instructor was also very humorous, fun, and responsible. The scenery was especially beautiful and photogenic.

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