Some good tourist attractions are Red Rocks Ampitheatre, Six flags Elitch Gardens (also has a water park), The Denver Museum of Nature and Science (also has a planetarium and an IMAX theatre), The Denver Zoo, The Denver Mint, Waterworld, The Children's Museum, and Ocean Journey (also has a restaurant). The afformentioned are all family friendly. Coors Brewing Company (Golden) offers tours, as does Budweiser (Ft. Collins). I think that The Coors tour is better, but then again, I am biased because my geo partner (and fiance) works for Coors. If you are interested in history, Lookout Mountain (located in Golden) has a Buffalo Bill museum as well as his grave. That's all I can think of for now , but you can feel free to email me or PM me. I will post other suggestions if I see any. Sorry that I can't suggest any caches, but I am fairly new to the sport! Have fun and enjoy our wonderful state!
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Happy Hunting---Team ODDCOUPLE