Zanzibar Vacation Guide. Zanzibar is an archipelago located off the coast of Tanzania in East Africa, and it's a popular tourist destination known for its white sandy beaches, clear turquoise waters, and rich culture. Zanzibar's main island, Unguja, is home to the historic Stone Town, a UNESCO World Heritage site with a maze of narrow streets and alleyways lined with Arabic-style buildings, mosques, and bazaars. Tourists come to Zanzibar to enjoy a relaxing holiday on the beach, snorkeling, divi