Bruneau Dunes State Park (45 min south of Boise) holds North America's tallest single-structure dune at 470 ft — sandboarding rentals at the visitor center. Day two: a Class II-III run on the Snake or Payette with a guided outfitter. Boise's Basque Block is the wild card — Bar Gernika serves lamb stew and chorizo with imported Spanish wines, the Basque Market does a sit-down feast on Sunday afternoons. Sleep at the Modern Hotel (rooftop bar, design-forward) or Leku Ona right on the Basque Block. Boise (BOI) is the airport.
Five quick questions, then we build the full itinerary — lodging, daily schedule, dining, bars, the group-chat message — and drop you into a Trip Room you can share with the crew.