The trip from the old port to the volcano is about 10 minutes per way. From the port of Athinios is about 20 minutes per way.
When you arrive to the volcano it will take you about 30 minutes to reach the craters. Swimming in the hot springs is recommended for good swimmers and you should wear dark colour bathing suits because of the sulfur it might stain.
Necessary equipment for the tour - Dakoutros Bros J.V.

Necessary equipment for the tour

1. Comfortable shoes (sport shoes / rubber sole)
2. Summer, comfortable clothes (shorts / T-shirts)
3. Bathing suite and towel
4. A jacket for the sunset cruise
5. Sunblock cream and hat
6. Money for the drinks on board, the lunch in Thirassia, entrance fee to the volcano and cable car or donkeys.

The old port is accessible only:

By cable car
The cable car of Santorini is a donation of the institution LOULA & EVAGGELOS NOMIKOS, in order to serve the locals and thousands of visitors all year around. Perfectly safe, consists of 6 wagons, capasity of 6 persons per wagon. During high season it runs every 20 minutes. The cost is 5 euro per adult and per way and 50% for children.

By walking
The famous 600 steps of the traditional road that connect the old port with the town of Fira. The walk is about 20-30 minutes, depending on your physical condition.

By donkey
The donkeys used to be the traditional transportation way of the island. They go up and down to the old port of Fira frequently. The price is 5 euro about per person (per way) and the ride lasts about 20 minutes. It is suggested to take the donkey to the town of Fira.