I wasn't sure that this would be worth a visit, but I am so glad we went. Ignore the "guides" as you walk through, you don't need one and entry is free (or, it was when we visited). Once inside, the caves - natural and man-made - are well-lit, large and beautiful. There is a cafe onsite, with the obligatory hawkers selling trinkets, and you can walk on the rocks by the sea. We were in and out in 20 minutes, but it was still worth the visit.