The county’s northwestern reaches provide superb walking terrain, best accessed via the signposted 25km Cavan Way, which runs through jagged landscapes from Dowra in County Leitrim to Blacklion where it joins the Ulster Way. The hills above Blacklion command dramatic views across Lough Macnean east to Fermanagh’s lakelands and west to the mountains of Sligo and Leitrim. About halfway along the route is the Shannon Pot, the veritable source of Ireland’s longest river but a mere trickle here.