South coast village here, too. The main beach is prepaid online visitors only (to keep socially distanced), with warnings not to come here online and notices up in the surrounding areas.
We are absolutely inundated with visitors. The traffic is at a standstill, the beaches are packed out, and the surrounding villages are just wall to wall cars. To park, they are moving police cones, parking on double yellows, corners, across and even in driveways. I've never seen anything like it.
The village school is by the beach and the parents are talking of near-misses when crossing, cars driving round children on the crossing outside the school, and not being able to park.
It's horrible to see the rubbish (and human excrement) all over the place. And hear the stories of aggressive parking, and laughing at the traffic wardens. It's a shit-show. My sympathies are with the people of Bournemouth.