Are there trails for hiking in winter in the resort? for those who unfortunately can't ski right now but wants to enjoy the snow? what activities are available other than skiing, snowboarding, tubing?

There aren't "trails" per se but we offer Snowshoeing at both our East and North Resorts. $25 for 2Hrs. See here for details https://www.mthigh.com/site/mountain/events-and-activities/yetisnowpark.html

Some random areas to walk out to but right now it is too dense with snow and ice

Snow shoeing at top of east resort and scenic chairlift ride.