I'll recommend a spot at the edge of your 3 hr limit. It's a great small lake for camping and can be fished well from the bank, a tube or a canoe/kayak. It's one of the prettiest spots in Oklahoma and worth the drive. It has Crappie but not any Smallmouth. To make up for that tho' it's where the last two state record Largemouth were caught during two consecutive years in March. It a small Forest Service lake in LeFlore county called Cedar Lake. Big motors are not allowed so it's usually pretty peaceful there. This is a great time of the year for camping.
Enjoy your Dad's company while you can. A father-son relationship is a treasure and should be nurtured by both to be a good relationship. I lost my son a little over a year ago (he was twice your age) and miss him very much. We had some great times together in the outdoors in Colorado and Oklahoma as he grew up. Just wish we could have had more.
A kayak is a great fishing platform and can be easily transported, plus you don't have to spend a lot of $$ for one. There are lots of local waters they will work well on - I used mine on Thunderbird.
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