crown-of-thorns starfish

acidification adventure animals archipelago bay beautiful bleached blue bright change climate colorful colors conservation coral corals crevice crown dangerous dark descends diving ecosystem environment environmental exploration explore fish grotto guadalcanal habitat habitats healthy islands lagoon landscape life light marine marovo melanesia melanesian natural nature niche niches ocean organisms pacific reef remote research resort sandy scenery scenic science scuba seafloor seascape seastar shallow shallows snorkeling solomon species spines star starfish sunlight swimming thorns tourism travel tropical tropics warty water wild wildlife