That's fine also. I wouldn't want you to do something you wouldn't be comfortable doing. I was just offering that as a suggestion.
We thought we were going to go up the tower and when we got there, there was not a long line to go up. BUT once we saw it and saw the people climbing.. well we decided not to go up. Unless the tour was going to get you a discount on the price (doubtful as its a national park type of admission) then I would just wait until you get to it.
Carnival Cruise Lines:
Fantasy 90, Celebration 95, Victory 05, Conquest 05, Spirit 6/06, Freedom 6/08, Holiday 7/08, Victory 6/09, Valor 9/09, Dream 6/10, Splendor 8/10,Conquest 8/11,Magic 11/11,Triumph 4/12,Spirit 7/12,Freedom 11/12, Triumph 2/13 - The fire cruise
NCL Dream October 2006, RCCL Mariner OTS June 2007