According to the drawing available here on SailboatData.com: https://sailboatdata.com/sailboat/luders-36-cheoy-lee
the boat appears to have a deck (or cabin-top) stepped mast. It would have to go down through the inside aft corner of the head, and it does not show up there in the drawing. Deck-stepped and keel-stepped masts can both be climbed. They can also both be unstepped and laid down to work on. The choice may depend more upon what work needs to be done than how the mast is stepped. Unstepping the mast on a 36’ boat is an undertaking in either case. Climbing them is also dangerous, and is only done with the boat floating afaik.