Top picks for Onna Water activities

Discover 21 Water activities in Onna on Trip.com, updated May 10, 2026, with experiences lasting from 1 to 6 hours. Find the perfect adventure for your day!

From BRL 114.94 per person, with an average total of BRL 225.20. Choose the option that suits your plan.

With 288 verified reviews, Water activities Onna boast an average rating of 4.3.

This week's most popular Water activities: "2-hour diving and snorkeling experience at the blue cave in Okinawa city, Japan [blue cave snorkeling/diving/English and Japanese instructors/shore entry to avoid seasickness]", with 275 reviews and a 4.8 rating.

Now on Trip.com: "2-hour diving and snorkeling experience at the blue cave in Okinawa city, Japan [blue cave snorkeling/diving/English and Japanese instructors/shore entry to avoid seasickness]", a 2-hour adventure in Onna!

The next available day tour departs on May 11, 2026. Book now to secure your spot!

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

75% of Onna Water activities now offer English-speaking guides

May is the perfect time to visit Onna! Choose from Water activities available day tours, including seasonal favorites like 2-hour diving and snorkeling experience at the blue cave in Okinawa city, Japan [blue cave snorkeling/diving/English and Japanese instructors/shore entry to avoid seasickness].

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

Search attractions or local attractions & tours
Book now for today
Book now for tomorrow

21 results for Onna Water activities

1
2

Frequently asked questions about Onna Water activities

How many Water activities are available in Onna on Trip.com?

What are the best Water activities in Onna?

What are the top-rated Water activities in Onna?

How can I contact Trip.com customer support?

Can I change or cancel my booking?

How can I get discounted prices?

Reviews/Trip Moments

Reviews: 2-hour diving and snorkeling experience at the blue cave in Okinawa city, Japan [blue cave snorkeling/diving/English and Japanese instructors/shore entry to avoid seasickness]
Guest User2026-04-30
Everything was well organized. I was alone with the instructor. Since this wasn't my first dive, I enjoyed the clear water and the view of the cave's depths without worrying about whether I was doing everything correctly. Special thanks to the instructor for not bothering me too much, knowing my experience.
Reviews: 6-Hour Diving and Snorkeling Experience at Ishigaki and Blue Cave in Japan [ADVENTURE PiPi Ishigaki: Mangrove SUP/Canoe & Blue Cave Snorkeling]
Guest User2026-04-08
The activity was fun and I got to meet new people. The staff were responsible, capable, and even helped with photography. Also, the transportation from the hotel to the activity venue and back was very convenient.