A level students doing a sandhopper survey, Castle Bay, Dale, Pembrokeshire, Wales, UK, Europe

arms arm biological biologist biologists biology castle bay crustaceans continuing education continuing crustacean dale educational education further education further glove gloves marine biology pembroke pembrokeshire pembrokeshire coast prembroke coast protective clothes protective clothing research researched researcher researches researching sand hopper sand hopper sand hoppers sand hoppers science sciences scientific shellfishes shellfish sit sitting small group of people small groups of people stone stones student talitrus saltator to sit s046