Loughnadarragh

The water here is dark and still, hemmed in by forested slopes that drop straight down to the shore. Loughnadarragh sits in the drumlin country south of Omagh, quiet enough that you'll hear nothing but birds and the occasional splash. It's a proper working landscape - the lake feeds into the Strule River, and you get a sense of how water moves through this part of Fermanagh and Omagh rather than just stopping to admire it.

There's no visitor centre or amenities to speak of, which is precisely why it's worth the short drive from Omagh. This is walking country. The shoreline path gives good views across the water, and on clear days the ridges beyond feel properly wild. Families with older kids will manage fine here, though toddlers won't find play equipment or facilities. Bring a packed lunch if you're settling in for the afternoon.

If you're based at Gortin Glen Glamping nearby - excellent spot, that one - Loughnadarragh makes an easy morning or afternoon ramble without needing to trek far. The drive is barely six miles. The lake works best in autumn and spring when the light sits low and the water reflects the trees properly. Midwinter gets gloomy; midsummer, the midges can be fierce.

This isn't a destination that'll fill a day on its own, but it slots well into a walking holiday across the region. Free, naturally, and there's no time limit on how long you linger.