You can easily travel from the port of Rafina or Peraeus to Tinos on a regular ferry or fast boat in 2 or 4 hours approximately, depending on the ferry you pick.

There are flights to the airport of Athens and the island of Mykonos, which is the closest one.

Since you arrive at the port of Tinos with direction to the left you follow the road that leads to Big Blue which is 1.5 km from the port,
5 minutes by car and 15 minute walk.

In just 100 meters distance from Big Blue there is Agios Markos bay and in 250 meters the beach of kionia, two traditional taverns
and the ancient temple of Poseidon.