Portsmouth is more than just a cycling town, it is a town with a beach: Southsea.
Once they get there, the people can lie in the sun. They cannot swim, on account of the water being ice-cold.
And they cannot cycle along the seafront, as there is a bit of a hold-up in the plans to make cycling along the seafront safe. But as long as you know a direct route to the seafront, you can get your bike to the water's edge. But not along, oh no.