I can relate dbs944. The DW is petrified of snakes and if one is around it seems to want to find her. She will go on walks with me but is constantly looking around and will clap her hands if the path gets narrow.
It’s frustrating but I’ve learned what the limits are and she tries to push herself. She is getting better as we see more. We had a huge black snake slither through our campsite at First Landing SP while we were sitting under the awning several years ago and we are still going back.
Any serious hiking / biking is done solo while she shops…works for us.