You might want to play some rounds at Markischer Golf Club, located 4.2 mi (6.8 km) from central Hagen. If Markischer Golf Club doesn't quite scratch your golfing itch, Golfclub Gut Berge is just a short drive away.
If museums are on your list of things to see in Iserlohn, then you might want to head to Dechen Cave and Museum. If you want to experience more of the culture Iserlohn has to offer, head to Hohenlimburg Castle and Burg Altena.
Hohenhof Villa is just one of the attractions in Emst, Hagen so you might want to stop by during your trip. If you want to experience more of the culture Hagen has to offer, head to Hohenlimburg Castle, Spielbank Hohensyburg, and Stadthalle Hagen.
If you want to see a show while you're in town, try and grab some tickets at Theater Olpketal in Hombruch. If you enjoy the show and want to see another, Dortmund Opera House, Dortmund Concert Hall, and Theater Dortmund are not far.