Visitors to Aberystwyth promenade are being invited to look out to the sea for a glimpse of something mysterious...

Wooden viewfinders have appeared on the prom for people to look out across Cardigan Bay and, when you do, it looks a little different.

We won't give the game away just yet, but if you pop down to the prom all will become clear! The viewfinders will be on the seafront until 10pm tonight (Thursday, 4 May), and from 8am-10pm tomorrow.