We were around Grand Marais Saturday and it was really rough. Can't believe getting into town was fun. No grooming in a couple days. As for halfway lake, you will have some dry/muddy roads to contend with to get there by sled. Best bet to get there would be from trail 415 take CR422 East to CR407. The ditches North to the resort sign and turn right. There was plenty of snow out away from the towns, and Seney seemed to be the only ones grooming. Off trail was fabulous.