The Golden Gate Bridge

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San Francisco
It may seem counterintuitive to head to California to escape the heat, but San Francisco is known for its breezy summers. An average temperature of 70 degrees makes it the perfect family destination, so lace up your sneaks—this bay area gem is best seen on foot.

To Do: Take a bay cruise to Alcatraz, the legendary maximum security prison that once housed Al Capone. An audio tour of The Rock, which operated from 1934 to 1963, is a favorite of adults and kids alike, especially the captivating tales of inmates who tried to escape.

To See: Known as "the crookedest street in the world," Lombard Street is a block full of hairpin turns at an incredibly steep incline. Driving down it can be a traffic nightmare, but walking it is a great time—and a great workout!

To Eat: San Francisco is a culinary playground, but, as any local will tell you, if you only eat one thing, make it a burrito. Taquerias are plentiful, and most serve irresistible authentic burritos for only a few dollars each.

To Stay: Pass on big hotels in Union Square—a popular, but mostly theatre- and business-filled district—for a smaller bed-and-breakfast in the Marina neighborhood.

For more information, visit San Francisco's official website.