British holidaymakers stumbled across a hermit crab on a beach in Costa Rica – with an actual miniature HOUSE on its back.
Amusing footage shows the animal sheltering under a building-shaped shell while shuffling along the sand.
Hermit crabs have soft abdomens which they protect by climbing into shells that once belonged to other sea animals.
Like humans, the creatures move home whenever they outgrow their current residence.
Baffled tourists initially thought the crab had somehow come by its unusual shell by accident.
In reality, it turns out it was a stunt set up by property website Zoopla for a new advert which first aired during Monday night’s Broadchurch finale.
The man who filmed the clip, a 28-year-old Londoner, recorded the clip on a beach in Puerto Viejo, on the Caribbean coast of Costa Rica, last month.
He said: “I was on holiday just chilling on the beach and I saw this thing pop up.
“It was funny. I’ve never seen anything like it. It was pretty hilarious.”