Legend has it that the gods created Dia Island and there's certainly something heavenly about it. On this trip, you'll set sail to the mythical isle whilst enjoying all-inclusive drinks and a tasty lunch onboard. What's more, with plenty of time for swimming, snorkeling and even a spot of fishing too, this trip really gets the holiday vibes going.

Casting off from Heraklion, you'll admire Instagram-perfect views of Castello a Mare fortress as we leave the shore behind. With time to relax and sample a drink from the bar, you'll catch some rays out on deck as we cruise towards Dia Island – the favourite dive spot of underwater explorer, Jacque Cousteau.

Dropping anchor, you can dive into the Aegean and snorkel the same waters as the famous oceanographer or try your hand at some fishing. Then after the crew serves up a delicious lunch, there's more time to top up your tan on the leisurely cruise back to port.

I found it difficult to get back onto the boat from swimming in the sea. My upper body strength isn’t that good.

Marcus and Alexandria were brilliant hosts. We loved our swim stop and we were never rushed. The food was amazing and the best food we have had on a trip.

It was a fantastic experience; service was great, the staff were helpful and always put safety first! The day was magical, the water crystal clear, the snorkeling was amazing and the food, although basic, was very tasty and hit the spot. I nearly booked it again for the next day!

The driver picking us up was 20 mins late first thing then had to wait a further 30 mins at the end of the trip so arrived back at hotel much later than planned. The captain was helpful, however he and his assistant didnt seem to engage much with the guests. Lunch was grilled chicken and rice and appeared to have been re heated and served in plastic microwaveable bowls. We usually love boat trips and have been on many around the world. Sadly this trip was dissapointing. Didnt seem very organised

We didn’t enjoy this trip at all - the pick up was very late and miscommunication from the hotel. The staff were not engaging, the food provided was awful, there were hardly any fish to see when snorkelling. Not worth the money at all.

I honestly can't fault it from start to finish Marcos and Alexandra were absolutely fantastic made us feel very safe and secure in the boat. We're great at making the less confident swimmers feel secure and enjoy the most of the experience in a safe manner. Once in a lifetime kinda of experience and really made our holiday. Lunch was also great very generous portions so we were stuffed but not something to complain about!

Why you’ll love this…

Dia Island cruise

Important to know

Bring bathing gear, a hat, sunblock and a towel
Excursion duration is 4.5 hours
Minimum age is 4 years

Cancellation policy

Receive a 100% refund if you cancel up to 1 day before the experience begins.

What’s included

Transport
Lunch
Drinks
Snorkeling and fishing equipment

This experience meets the Global Sustainable Tourism Council criteria. By choosing this experience you can protect the places you love, care for the environment and support local communities.

Booking fee

Good news! No extra fees are applied to this booking.

Pickup points

To see which pickup points are available, check under availability & prices.

Provider

TUI Hellas Travel, Tourism and Airlines SA

What people say about this experience

4.7/5

All reviews are verified

Based on 353 reviews

Review categories

Value for money

4.5/5

Service

4.8/5

Safety

4.8/5

Staff

4.8/5

All ratings (353)

5 stars (275)

78%

4 stars (63)

18%

3 stars (10)

2 stars (3)

1 star (2)

J
Jo Solihull
Solo traveler
November 3, 2025
4.6
United Kingdom
I found it difficult to get back onto the boat from swimming in the sea. My upper body strength isn’t that good.
M
Mrs S
Traveled with family
October 30, 2025
5
United Kingdom
Marcus and Alexandria were brilliant hosts. We loved our swim stop and we were never rushed. The food was amazing and the best food we have had on a trip.
S
Shannon
Traveled as a couple
October 25, 2025
5
United Kingdom
It was a fantastic experience; service was great, the staff were helpful and always put safety first! The day was magical, the water crystal clear, the snorkeling was amazing and the food, although basic, was very tasty and hit the spot. I nearly booked it again for the next day!
B
Birmingham couple
Traveled as a couple
October 2, 2025
1.4
United Kingdom
The driver picking us up was 20 mins late first thing then had to wait a further 30 mins at the end of the trip so arrived back at hotel much later than planned. The captain was helpful, however he and his assistant didnt seem to engage much with the guests. Lunch was grilled chicken and rice and appeared to have been re heated and served in plastic microwaveable bowls. We usually love boat trips and have been on many around the world. Sadly this trip was dissapointing. Didnt seem very organised
D
Dipika
Traveled as a couple
October 2, 2025
2.6
United Kingdom
We didn’t enjoy this trip at all - the pick up was very late and miscommunication from the hotel. The staff were not engaging, the food provided was awful, there were hardly any fish to see when snorkelling. Not worth the money at all.
J
Jess
Traveled as a couple
September 27, 2025
5
United Kingdom
I honestly can't fault it from start to finish Marcos and Alexandra were absolutely fantastic made us feel very safe and secure in the boat. We're great at making the less confident swimmers feel secure and enjoy the most of the experience in a safe manner. Once in a lifetime kinda of experience and really made our holiday. Lunch was also great very generous portions so we were stuffed but not something to complain about!