Well, it's undergoing renovations, so I believe it should have been half-priced than the usual 10 bucks for MYKAD holders because 40% of the place was not accessible so yeah we only could spent like 30 minutes max inside and we were all alone with the renovation guy and two other guys with a huge fat white cat near the toilet. Toilet was top class though. There was a cafe but didn't bother going in, looked empty. Basically, we were the only guests. Only missed the small tunnel which was a bit cramped. As they were doing renovations, they should have at least closed the place because there are some places that can hurt you if your not careful but went ahead and went as far as we could. So yeah worth it if you charge 5 bucks instead of 10 because it's not a big place. The lighthouse portion was locked and there is a small bunker.