hi stu, yes the boat cruises from san an are very good, the one i liked is the esvedra cruise i think it is for about 3 hours , going along the south west of ibiza, some great sceanery and you go past some very nice beaches you also stop at cal de hort and the water is very clear, i also liked going on the mini train from i san an going into the countryside, the train driver does comentating, very mad but very funny, hope he is still doing it, as for es cana a pritty little but buzzing resort, you have the hippy market on wednesday which gets very busy, also you have mini trains going into the inland villages such as san carlos, we really liked going on the water taxis from es cana to santa eulalia, an upmarket resort about 20 mins boat ride, also calla longa a buitifull bay a little further from st eulalia the water taxi ends up in ibiza town, which is a must, if you want to get to san antonio, im not sure if the buses go direct from es cana to san antonio, but dont quote me on that, if they dont, then jump on the water taxi to st eulalia as the buses to san antonio leave to there often, but make sure you dont get back to late as you dont want to miss the last boat from st eulalia to es cana, if you do, well a walk along the coast between the st eulalia and es cana isnt all that bad if you enjoy a walk, nice and flat and nice sceanary, otherwise there is also a car taxi you could use, hope i have been helpfull mate, im sure you will have a great time,matt