sandy beach of a tropical island. exposed rocks of the seabed are visible

shore sea coast cloud water ocean beach bay sky wave horizon nature rock landscape sandy tropical island exposed rocks seabed visible turquoise green vegetation background blue clouds madagascar nosy tanikeli beach island indian ocean exposed rock sanctuary idyllic vegetation ecology turquoise sky low tide picturesque tidal cycle sandy spectacular serene africa tanikely peaceful malagasy madagascar seascape exotic tropical calm cloud shore sand scenic vacation background tourism coast blue beautiful view clouds summer travel sea water landscape