Set in rugged, mountainous territory in the east, Cuba's fourth largest city is known as the City of Parks. Columbus called the area "the most beautiful land eyes have ever seen" and much of the surrounding area hasn't changed. Officially called San Isidro de Holguin, the city's elegant plazas, scatter of colonial buildings and few museums make for a pleasant daytrip. More wonders lie offshore. Swim with dolphins in Bahia de Naranjo Nature Park. Dive to sites off Playa Esmeralda and Guardalavaca.