I live in La Crescent, the Apple Capital of Minnesota.  We have many orchard stores selling a huge variety of the freshest, crispest apples ever!!!  And, Yes, we have Honeycrisp!  That is one of my favorites.  I just bought a 10# bag on Friday.

I take a few fresh apples with me on canoe trips. They need no refrigeration ... at least not for several days.  I would not slice them or freeze them for a trip.  Perhaps dry them.

If you're freezing for home use, as in for pies or apple crisp, etc., then you need to blanch them.