There is fishing of all kinds for all levels of competence. River, Loch and Sea. Below are some suggestions. Your hosts will be only too happy to advise you.
Logan Fish Pond at Port Logan is worth a visit to feed the live turbot, cod and skate kept in the pond until they're ready for the owner's table!
Walk in forests and woods, by the sea and up hills and mountains. Discover unspoiled ancient and historic sites, from castles and ruins to standing stones and cup-and-ring-marked rocks.
AND SO MUCH MORE ......
If mountain-biking is your thing, then we are close by the World Class Mountain Biking Centres of Kirroughtree and Glentrool, 2 of the 7 Stanes Cycleways that span the south of Scotland.
Galloway Forest Park is a Dark Skies Park, the 1st in the UK to be awarded this status. There are only 4 Dark Skies Parks in the world.