Wong Nai Chung Reservoir Park

The Wong Nai Chung Reservoir Park is pretty much what the name describes: it is a public park centered on a reservoir in Wong Nai Chung Gap. It’s quite easy to get to, as there is a bus stop just down the hill served by busses from both the Wan Chai side and Stanley side of the island.
The reservoir itself is fairly small but perfect bot a paddle boat ride. Just remember your mosquito repellant! You can also walk out over the dam side of the reservoir, which has a great view down towards Aberdeen and is part of several trails in the area.
The site also has some WWII relics nearby along the trails, if you’re into seeing that sort of thing. There’s a snack shop at the boat rental location if you’re hungry but selection is limited so your own picnic might be nicer!