Lovely food - worth the walk. (Recommend the mixed platter as a starter).
Always very busy - when you go there you'll understand why!
Nice relaxed beach, clean sea, and good for snorkelling.
If you want to see a turtle, hire a pedalo from Kalamaki and go out 200 metres - we saw 3 in just 45 minutes, and my wife swam with one of them! No need to go anywhere else for the turtles, but if you do for other reasons, use the 'Taxi Rank' as your return destination (all the taxi drivers in Laganas know it).