Skip all the dummies hawking kayaks at the Pile gate. We had Ivor for a day trip to Koločep, and it was awesome. We want to the office to book and got a comprehensive rundown of the tour we intended to book, and actually got talked into a different one that was great. Everything that was promised at booking was delivered. We had a small group, just 6 people, and everything felt flexible to what the group was interested in. We kayaked, swam, ate fresh grilled seafood. My wife and I are not unfamiliar with kayaks, but fairly amateur, and we took a tour rated "moderate" and were completely comfortable. The kayaks are a MUCH higher quality than you can rent near pile.