Great for kids
Snorkel boat trip
Snorkel the hidden caves of White Rocks and Dunluce Castle
A 3-hour snorkelling boat trip from Portstewart or Portrush to explore the hidden Ice Age caves of White Rocks and the coast below Dunluce Castle.
- Duration 3 hours
- Departs Portstewart or Portrush
- Minimum age 8 years
- Included Mask, snorkel, fins & lifejacket
- Non-snorkellers Welcome on board
- Private charter Up to 12 guests
- Local skippers on MCA-coded boats
- All snorkel gear & lifejackets included
- Suitable from age 8
What you'll see
Hidden caves
Snorkel into caves carved during the Ice Ages – unique rock formations with hidden entrances and exits.
Dunluce Castle
Another stop below Dunluce, seat of the Clan McDonnell and a well-known film location.
Skerries seal colony
Head back via the Skerries islands with a quick stop at the playful seal colony.
Marine wildlife
Look out for seals, fish life, diving birds, dolphins and porpoises. Sightings are never guaranteed!
About the trip
Depart Portstewart or Portrush and explore the amazing hidden caves of White Rocks, created during our Ice Ages – unique rock formations with hidden entrances and exits. Look out for seals, fish life and diving birds as you snorkel.
There's another stop below Dunluce, seat of the Clan McDonnell and of course a well-known film location. We travel back via the Skerries islands with a quick stop at the playful seal colony, keeping a look out for our dolphins and porpoises.
What's included
- 3-hour tour
- Mask, snorkel and fins
- Lifejackets
Not included
- Tips or gratuities
Choose your date
Pick a day and time, choose your tickets and pay securely. You'll get your confirmation by email straight away.
Meeting points
- Portstewart Harbour
- Portrush Harbour
- Your departure point and time are in your booking confirmation.
What to bring
- Weather-appropriate clothing
- Swimwear
- A towel
Good to know
- Suitable for ages 8 and over.
- Non-snorkelling tickets are available for anyone who'd rather stay on board.
- Sea sessions depend on the weather and sea conditions. If it isn't safe, we'll contact you to rearrange.
- Bookings are non-refundable.
Frequently asked questions
How long is the trip?
About 3 hours.
Do I need to be able to snorkel?
No experience is needed – mask, snorkel, fins and lifejackets are provided. Non-snorkelling tickets are also available.
How old do you need to be?
The trip is suitable for ages 8 and over.
What should I bring?
Weather-appropriate clothing, swimwear and a towel.
Can we book the boat privately?
Yes – choose the Private Charter option (up to 12 passengers) in the booking calendar.
What happens if the weather is bad?
Sea sessions depend on the weather and sea conditions. If it isn't safe, we'll contact you to rearrange.




