Hi Kermit,
didnt spot this earlier. Not sure if you will see this in time
Cannop ponds and Beechenhurst Lodge are a good bet for walks, cycle rides and water
Dick Wittington playbarn, Longhope for a wet day (hopefully not)
Dean Forest Railway, Lydney
Lydney park Gardens
Symonds Yat and Yat Rock for views and a riverside walk
Wye Valley also worth a look as it adjoins the Forest of Dean