You can sign up there or online. If it's your first time there, you will also need to sign waiver forms (which can also be completed online) and purchase socks (which can be done in person).
Either, but you will be much happier doing it ahead of time online. Don't forget to also fill out and sign the waivers online as well. The less you have to do when you get there, the better.
Either or is good.
You can go there or do it online. Be advised that you will have to purchase their special socks (unless you have them already).
You can do it online or in-store but best to do it at home.that place be pack.....
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