Oualidia, a laid-back fishing village along the coast of Morocco, is often referred to as the "oyster capital" of the country because of its fresh shellfish. Just a few hours from Casablanca, this destination is a lesser-known gem that's perfect for escaping the crowds. The one major hotel along the lagoon is La Sultana, which has 12 luxurious suites, including a treehouse suite that's nested in a tree with panoramic views of the lagoon. Here, travelers can take surfing lessons, try a traditional hammam massage, and have a beachside picnic.