Hello,
Bush craft is a good way to bond with him. Build some stuff! Maybe some tools, traps (just for fun), build a primitive fire using a hand bow, any fire making skill like wood processing, carve some animals, or anything else that involves survivals is fun. If bush craft isn't your thing and water is available go fishing. If you don't like fishing sit around the fire and pass around some whiskey and tell stories. For me camping and backpacking isn't about camping and backpacking. Its about the people your with and the experience you share. If this dose not work find a new hobby to share. R/C cars, fishing, shooting, hunting, working on cars or bikes, knife making, cooking/bbq, beer, cigars, pool, surfing, kayaking, ANYTHING that you can both enjoy together. Don't let the years go by, one day he may not be around and you'll wish you did something together when you had the chance.
Hope you have fun,
Chris