no problem. Sorry but I cant remember the prices of the boat trips.
I think Formentera was about €15 or something similar. perhaps more, but I would be guessing. It is well worth it though.
If you can, request a high floor room, with pool or sea view.
You may as well try to get a good room, it couldn't hurt.
Try the Jacaranda for food, on the corner across the harbour. Lovely sea breezes while you enjoy your meal and very attentive staff.
We hired a car through AVIS for three days each week and really enjoyed seeing the island. Travel to Portinatx for a few nice beaches and a quaint village. We are staying here this year for a change. Travelling on Saturday YAY!
Try to see a sunset at San Antonio at Cafe Del Mar, Savannahs, Coastline etc. Not clubby places, just pleasant chilled out relaxing atmosphere. Really worth a trip across the island.
Hope you enjoy your time. x