From DAK, there is a direct bus to Fort Wilderness Outpost Depot. Currently, it is bus stop #10. (However, there will be construction going on at the Load Zones fairly soon, so please double check all signs before boarding any bus)
Once you get to the Outpost, you will need to take an Internal bus to get to the Hoop Dee Doo. Internal buses run every 10 minutes, and it takes 5 mins to get there. Look for the words "SETTLEMENT" -- any color will do. The Settlement is where Pioneer Hall is located.
Alternatively... you could catch the bus to the Contemporary (Bus stop #2, but right next to #10) and then take the Boat over to the Hoop Dee Doo (no internal bus needed). This is probably the most preferred route, since there is a boat involved.
A third option is to take the Wilderness Lodge bus (#1), and then transfer to the Fort Wilderness internal bus there. (It'll just say FW on it) Or you could walk or take the boat from there.