we stayed at olgas apartments 2 Years ago, - about 5 mins walk to beach- if you cut through the kanali apartments- just a short walk uo from olgas (as you come out of the apartments- turn right and its just up the road)- Yes there are snorkling trips , water park is great too, also glass bottom boat barby is ok too (if you like that sort of thing (15E).
Our transfer was about 1 hour 30 mins! (Although we did go all around the houses-)
Nickolas restaurant (About 5 mins walk from apartments - turn left as you come out of apartments onto main road, and its a couple of mins walk up the road)- gorgeous restaurant, and is owned by the people who have olgas (so on arrival you will be given a 15% didcount card for there)
Enjoy- we-re stying at angelinas this year- more or less opposite olgas.
BELLY