The cave is not that technical. More like it's intended for tourists. The good thing is that they really maintained the place. I tried exploring one of the caves here in Cebu, but they're vandalized and the stalactites were taken as souvenirs. I was really sad because I know how many years it will take a stalactite to grow and people are just easily taking and destroying them.
As for the beach, it was really relaxing. I don't know why, but there are a lot of people there and yet it doesn't feel crowded. So you're right. It's a good fit for relaxation after an exhausting tour or hike from the mountains.
We have the same issue with the caves over here too. Those which are offered to promote tourism further are more vandalized than those which can be visited by anyone whenever they want. That's really sad for a nature lover!
Now we share the same sentiments. I just can't get it why people would take such beauty home. It will be a very selfish thing to do. It's like an art masterpiece or a museum artifact. We preserved them and put them in a public museum for everyone to marvel and enjoy. That's what we should do with nature. We leave them as is and let other people enjoy too as we did.