Found a Few Hairline Cracks in the Fiberglass Siding

Thanks for the info everyone!

The cracks feel pretty superficial, so I think it's just the gel coat and not the actual fiberglass underneath. I'm going to mark them and see if they grow on this next trip before deciding how to proceed. That sealant Barney linked to looks pretty promising and is maybe all that's needed after etching the tips of the cracks to stop them from growing.

Not enough time to worry about them now - headed out camping tomorrow morning! :)