This tour is everything you've read-about... small, comfortable minibus transportation to Codorniu (to learn all about sparkling wines) then Montserrat (with an initial guided tour then plenty of time to wander on your own). And consider yourself fortunate if Julia is your guide - she's amazing!!!
Los Cabos, Mexico
Three really spectacular tours: (1) Zip Line (plus rappelling plus rock climbing plus swinging bridge) is great fun and run very safely - the 1600' finishing run (with speeds up to 40mph) is incredible!; (2) Desert Safari is both beautiful and educational - camel riding along the beach is etheral, and the lunch served is shockingly tasty; (3) America's Cup Sailing spoils you for all other kinds of sailing (just be advised that unless you're in top physical condition, being a "grinder" will wear you out and leave you with some sore muscles!).
All three first rate tours were value-packaged by Viator - I cannot recommend this more highly. When in Cabo, make time for all three!