I know Churchill has been attempted a few times and successful even fewer by using the existing rail line. I am however interested in going to the, as far as I know, never attempted ghost town of Port Nelson and the manmade island nearby. That is if it's safe to access across the 17 spans of dilapidated bridges between large concrete pillars. Might only be possible to hike, climb, jump the way to the island and leaving the bike behind. The rail bed was made the entire way to Port Nelson 100 years ago but the track was mostly never laid or since removed. Road access can take you to Sundance or further northeast (closer to the Port) to the Keeyask dam a mile off the rail bed. A few miles past Sundance at Amery is where the rail bed forks towards Port Nelson about 75 miles away. The rail bed condition is completely unknown. Fuel would obviously need to be packed for the ride in and out. Rescue only possible by boat and that's if you can get to the Nelson which at times is miles away. The route was once described as doable in a "lightweight gasoline powered vehicle" but I think that was back in the 1920s. Several river crossings, Weir and many smaller rivers. What research I've done suggests bridges were built but they appear absent from satilite pictures so might need to raft the bike across. To get onto the rail bed at Amery you would need to ride on the 'in use' tracks to Churchill for a few miles. Or blaze a trail from Keeyask a mile through pure bog but that's likely not possible unless under the high voltage DC transmission line. These were recently erected, mostly by helicopter but it might be possible to ride under if they used heavy equipment to put these ones up instead as the close proximity to the converter station where heavy equipment was used. I'm thinking of heading to Sundance and checking out the potential this summer 2021 and planning for the trek in 2022. I've never ridden in bog so I'd like to see what it's like. I need to talk to trappers/hunters at Sundance and see if I can get any idea of the condition of the rail bed and if theres bridges along the way. I also like to know what boats are nearby and if you can even launch a boat downstream of Keeyask Dam to traverse to the Hudson Bay. Pictures of the bike in the ruins of Port Nelson would be epic as well as on the 17 span bridge to the island. Even more epic would be on the island or at nearby York Factory. Drone shots would be mandatory but I don't have a drone. I also don't know what bike to use, Rokon perhaps? I think a SAT phone would probably be better then a SPOT for arranging rescue. York Factory is a few miles away via boat from Port Nelson and attended all summer by a Parks Canada employee. I'd like to arrange a boat to take the bike from Port Nelson to York Factory but I'm not sure if the attendant at York Factory even has a sea bearing boat or how they & supplies get in and out. Have to contact Parks Canada and find out more information. People apparently visit York Factory, not sure if it's by seaplane or by boat. Perhaps they take a boat from Churchill to York Factory, not sure. If it's not possible to ride to Port Nelson I might see if I can arrange to just boat it their instead. Anyone interested in joining or have valid information?