How much is the entrance?

It's free for Surfside residents, otherwise it's $5 a day, but I guess you need to be a member guest.

If you are a guest of a hotel in the town of Surfside, you may also have access.

if you are a resident of surfside you enter for free and if you are not, you are 5 dollars

I think you can pay to get in, like $5

Only if you are a resident of Surfside will you be allowed entry