shallow atoll sandbanks turquoise waves with lonely pleasure boat around mnemba island in the indian ocean near the zanzibar

africa amazing atoll bay beach beautiful beauty blue boat coast concept countries crystal drone exotic flying holiday idyllic image indian island landscape lonely mnemba nature ocean outdoor paradise pleasure reef sand sandbanks scenic sea seascape shallow shore sky snorkeling summer tanzania tourism tranquil travel traveling tropical turquoise vacation view water wave waves white zanzibar