Tanzania is home to some of the most beautiful beaches in Africa, with pristine white sands and crystal clear waters. A beach excursion in Tanzania can be a great way to relax and unwind after a safari or cultural adventure. Here are some of the best beaches to visit in Tanzania:

• Zanzibar: Zanzibar is an archipelago off the coast of Tanzania and is known for its stunning beaches, coral reefs, and turquoise waters. The island has a rich history and culture, with a mix of African, Arab, and Indian influences. Visitors can explore Stone Town, a UNESCO World Heritage Site, go snorkeling or scuba diving in the surrounding reefs, or simply relax on the beach.
• Mafia Island: Mafia Island is a secluded island off the coast of Tanzania that is known for its unspoiled natural beauty and diverse marine life. The island is home to several marine parks and reserves, and visitors can go snorkeling, diving, or fishing in the surrounding waters. Mafia Island is also a great place to relax on the beach and enjoy the laid-back island lifestyle.
• Pemba Island: Pemba Island is another island off the coast of Tanzania that is known for its stunning beaches and coral reefs. The island is also home to several spice farms, and visitors can take a tour to learn about the island's rich agricultural history. Pemba Island is a great place to relax and immerse yourself in the natural beauty of Tanzania.
• Dar es Salaam: Dar es Salaam is Tanzania's largest city and is located on the coast. The city has several beaches, including Coco Beach and Kunduchi Beach, which are popular with both locals and tourists. Visitors can also explore the city's vibrant markets and cultural attractions, such as the National Museum of Tanzania.

Overall, a beach excursion in Tanzania can be a great way to experience the country's natural beauty and relax after a busy itinerary. Whether you choose to visit Zanzibar, Mafia Island, Pemba Island, or one of the beaches in Dar es Salaam, you're sure to have a memorable and rejuvenating experience.