Haven't been for years but when I did I walked from the harbour then nipped into the 711 next to the entrance, bought a drink and some snacks then just strolled past the ticket booth. If challenged I just said I am staying at the resort and just came to shop at 711. Never paid for an entrance fee in all that time. The park officials go for the tourists riding on the songtows, so it is easy to slip past them as they are too busy going for the groups.