Like they used to say in the military: “If it ain’t snowin’, we ain’t goin’, if it ain’t rainin’, it ain’t trainin’!” and “Your skin is waterproof and fully breathable”… Seriously though, we operate in almost all weathers so come prepared for the forecast. The Retreat only closes in time of high wind (bringing the danger of tree fall) or high rainfall (bringing the risk of flooding on the banks of the river).