See Portland’s best sights and the spectacular natural beauty of the nearby Columbia River Gorge with this combo tour. Use your 2-day hop-on hop-off sightseeing trolley pass to explore top Portland attractions such as the International Rose Test Garden, Powell’s City of Books and the Oregon Zoo at your leisure. On your tour of Oregon’s picturesque Columbia River Gorge, visit towering Multnomah Falls and Bonneville Dam and travel back to Portland in the footsteps of famed explorers Lewis and Clark. With a mix of independent and guided sightseeing, this combo tour is a wonderful introduction to the Portland area.