Easy to do, unless it has been in place a long time with accumulated dirt and salt
Deflate half or so before removing. They slide out from the back to the front (and you are left with sort of a 'V' shaped tube. As Santa said (don't think there is a -bad- Santa), slide both sides out together, ie with 2 people or, when on your own, a foot at the time alternate sides.
Sliding in is the reverse; clean the aluminium track before sliding in. BTW, if the track is dented.....fix that first.
Takes 10 minutes on the beach. Up to half an hour on deck
of a small boat.