All of the broad habitats outlined briefly here are either inundated by water or exposed to the air at least partially for a few days each year, though some will experience both daily, making them potentially visible on satellite images and by drones. They differ from most of the other habitats covered here by being directly influenced by marine conditions. All of these habitat will be impacted, either directly or indirectly, by human influences, e.g. sea-level rise associated with climate change, but some are less susceptible to direct management interventions.