Set sail from the old Venetian Port of Heraklion to Dia Island on a yacht tour. Cruise through the Mediterranean Sea. Feel the wind on your skin, cool off in the sea by snorkeling and swimming, and enjoy a full meal onboard.
After an hour of sailing, drop anchor at St George's Bay, the biggest bay on the island. Spend 2.5 hours there, swimming, snorkeling, and fishing. With the snorkeling equipment that is available for everyone on board, explore the Mediterranean biodiversity and the remains of the ancient Minoans' port. Or use the fishing gear to try your hand at fishing, with respect to the local ecosystem.
For the more adventurous, there is also a chance to walk the wild landscape of the island towards the chapel of Analipsi. Later, come back onboard for a taste of local cuisine. Sit on the deck, savor your meal, admire the scenic view, and listen to music.