Welcome to OFF.
I'm in full agreement, with all of the advice above. As my dad put it, when we first got ours some 28 years ago...tubing is "like fishin' from an easy chair"!
If you haven't yet heard this...always walk slowly backwards into the water. Then if you should slip; you just sit down and you're good.
95% of my tubing, has been with a spinning rod and reel. But, I NEVER leave home without black and olive green Woolly Buggers (plus, green, black, and brown Teeney Nymphs). I use those with a torpedo bobber, 4 - 5 feet of leader, and a small (BB) sized split shot about 18" above the fly. I've landed literally hundreds of trout, with such gear (by going VERY SLOWLY/SLIGHTLY KICKING). Your main line attaches on the larger end of the bobber--with your leader, tied to the smaller end. Here's a pic of the bobber:
Good luck and enjoy. We'll look forward, to your reports.
P.S. Don't just limit yourself to Crane. Heck, you live in our very own tubing Shangri-La! There are LOTS of lakes to fish.