That is a cracking photo! I grew up not far away from carrick and used to go down there a lot. Not been over to the island in years though.
If you do go down that way definitely pay a visit to Cream O’ Galloway. The ice cream is truly fantastic and the adventure playground is ace too. They also have tours around the farm, ice cream tours and making sessions and nice walks around the farm land too.
My young cousins love the , good fun with a play area too.
Sulwath brewery in Castle Douglas do a few nice beers and there’s a bar in there too if you fancy stopping for an hour or so.
Kirkcudbright is a nice town, its where I went to High School. A nice wee castle, lots of nice shops and a few arty places that might be worth a look. Check out the summer festivities they have going on, usually plenty to do if you time it right.