7. Lake Tahoe, California/Nevada
Lake Tahoe reaches its peak tourism during the winter ski season, but in the summer, a smaller, yet equally outdoorsy crowd comes for the hiking, fishing, and kayaking. The brave of heart swim in the chilly lake waters, and other fun activities include hot-air ballooning and gondola rides. There are also a few dispersed museums and historic mansions for those seeking a bit of culture during their getaway at what is arguably one of the best known and most magnificent lakes in North America.
