This isn’t strictly local but a lot of local people visit the seaside regularly so this might be of interest to them.

Above is a snapshot of a map which includes information about the quality of seawater along our coast.

It paints a pretty depressing picture.

Hornsea
Pollution Alert: Storm sewage has been discharged from a sewer overflow in this location within the past 48 hours.
A long, pebble and sand beach broken by groynes and backed by a seafront promenade, Hornsea is a popular beach set between Spurn Point and Flamborough Head. The seaside resort town of Hornsea with its large lake can be found behind the beach. There are two sewer overflows that discharge into the sea at this beach, one through an outfall and the other across the beach that drains the lake (Hornsea Mere).

Bridlington South Beach
Bathing not advised due to Poor annual classification.
A 1.5km stretch of gently sloping sand backed by the town with the harbour at the northern end. There is one sewer overflow which discharges straight onto the beach while a long sea overflow was built in 2014 to transfer discharge from the Gypsy Race 1.1km out to sea.

Bridlington North Beach
Pollution Alert: Storm sewage has been discharged from a sewer overflow in this location within the past 48 hours.
Bridlington is a large sand and shingle, gently sloping resort beach. It is backed by The Edwardian North Promenade and the town of Bridlington. There are two sewer overflows discharging directly onto Bridlington North Beach and another long sea sewer overflow discharging from Gypsy Race 1.1km into the North Sea.

Source: https://www.sas.org.uk/water…/sewage-pollution-alerts/