Cabo is beautiful! We almost ended up at Sante Fe years ago, but ended up in Cuba instead. We regretted that decision but never mind. We made up for it with 2 other visits to Cabo and love it!!!! We've heard a lot about Riu Santa Fe just from a travel perspective and it's still on my bucket list of resorts to go to. There is so much to do in Cabo! The shopping is great! And Cabo Wabo is a super bar. We did the whale watching tour and loved it. Make sure you take dramamine if you don't have sea legs. The water gets choppy. The arch is spectacular up close. Get pictures for sure. We've never taken the time to go to that beach to swim but we've heard that its worth it. Find a little cantina (there are a bunch) on the marina and get a bucket of beer and watch the people go by. Fun.
Good luck ladies, and happy planning!!