Mud might be the closest comparison except you don't look cool after going through sand. You're basically limited to cutting through or floating over sand/snow. I haven't ridden any sand on a mountain bike in a long time but the last time I did it on 40mm MSOs it was terrible. Resolutes should be better, but I dunno how low you were or can go with them.
Sometimes there's grass nearby that you can ride along, or you can just hope you never see those conditions again. A good rain can firm sand right up.