Odesa Due to the mined beaches of Odesa, police officers warned the vacationers not to visit the beaches.
Source: Tsaplienko

Officially the bathing season in Kharkiv is not open because of the war, a large area of forest belts and beaches is mined, and there may be unexploded munitions in the water areas, so rescuers recommend not to swim
Kharkiv rescuers staged a raid on water bodies to warn vacationers about the dangers.
Source: Kharkiv Life

Kherson In the occupied resort village of Lazurne, near the local pension Parus, three civilians were killed by a mine laid by Russian troops. People died on the spot as a result of a powerful explosion.
According to the regional prosecutor’s office, the Russians blocked the Black Sea coast, so it was life-threatening to stay there. A judicial investigation into this violation of the laws and customs of war, combined with the killing of a civilian, is under way
Source: OperativnoZSU