Found blue hiking rucksack with multiple pockets and water bottle holder near playground in East Midlands.

I found a blue hiking rucksack abandoned near the playground in East Midlands yesterday afternoon. It looks like it may have been left in a hurry. It has several pockets and a water bottle holder on the side, and there's a brand tag showing it's from a well-known outdoor gear brand. I didn't want to just leave it there as it seems valuable, so I'm hoping to reconnect it with its owner.