Yes - water taxis are expensive so if you don't want to walk along the coast, you have to pay the prices as shown below (click read more to see price list). However, please remember that the cost is for the trip whether there is one person in the boat or the full capacity of 8 (in most cases), so if there are 8 people sharing, they should share the cost. If you get in a water taxi with other people even if you don't know them, you should share the cost. If the taxi driver takes 3 couples from Hydra port to Kamini port it should cost 10 euros between them. If he charges each couple 10 euros (ie he makes 30 euros for the trip) he is breaking the law and you should report him to the port police (above the KEP office at the top of the stairs beside the Melina Mercouri Hall).

Taxi Prices: 2008