Bachelorette Weekend Struggles

My MOH originally began to plan the bachelorette weekend and wanted it a surprise, but people were unresponsive and it was getting too confusing/stressful so I stepped in to help. The plan is to go ziplining during the day, then go out for drinks at night. Almost all of the ladies said yes to ziplining and everyone agreed to drinks. So we went ahead and planned everything around that idea. However, now people are backing out of the ziplining and we only have maybe half of the group who wants to go. As the bride, I'd love to go since the area we live is small and it's a rare opportunity. There isnt much other fun options with our location/budget so changing activities would be difficult. The other plan we had was to get matching "bride tribe" shirts to wear while ziplining, but now that half the group won't be there, I'm not sure if we should since it'd be excluding those who won't go. (We'd be dressing up for drinks at night so wearing them then is not an option). What would other brides do?