Great Miami - a) Heritage Park (or Blue Rock Rd) to Obergiesing Soccer Complex (Formerly Dravo Park) (OH)
Swift flows through the rapids, bigger waves, and crispy eddy lines. Rec and novice boaters may have issues.
The name is tounge and cheek, as the hole is generally friendly. At higher water (3000+ cfs), the hole can look intimidating, but it's quite flushy if you are surfing in it. The spot can take a variety of forms from a breaking wave, breaking wave hole, hole, or exopsed rock.
This playspot really is good almost the entire time the river is running. You can play in it at high and medium water. The lower the water, the more hole like it is. Generally surfer's right is the sweet spot. Paddlers can spin and cartwheel on the surfer's right. When it's more of a pourover hole, you can side surf it. When the rock is exposed (low water), you can do eddy line moves. Be warned, there are some other rocks directly behind death hole that can clock yer head if you try and flip there when the Death Hole rock is exposed.
You can also try the "Cheating Death" attainment at low water. It's really quite lame, but fun to do when the rock is exposed. Surfer's right behind the Death Hole rock paddle hard to above the rock and ferry above it. Take the little chute down on surfer's left (river right). It's bumpy, so you'll have to use your hands on that one.
You can also park and play this by parking at Dravo, walking through the soccer fields up the river until you get to the woods (stay close to the river, as opposed to the road), take the trail through the woods down to the river, and put-in there and ferry across to give 'er a go.