The unofficial "How bad will I want a wetsuit for that?" thread.
I'm planning to be in Zion around the first week of may and I was wondering, is a wetsuit really necessary for mystery canyon? 2 short swims? If they are short I think I can manage, especially if I have dry clothes to change into. Cold water doesn't bother me for short periods of time. I routinely take short swims in alpine lakes and do a fair amount of river running in cold water.
On a scale of "wetsuits-are-for-pussies" to "mandatory-at-risk-of-life", where would y'all put the prudence of a wetsuit for mystery?