A hot tub is heavy, bulky, and full of plumbing, so it is one of the hardest items to move. It must be fully drained, tilted onto its side, and carefully rolled or craned out. Many moves need a professional crew and often a crane, so be honest about whether this is a DIY job.
Pro tip: Get quotes from hot tub movers before deciding to DIY, since a crane and crew are often worth it for a safe, damage-free move.
Watch out: Never move a hot tub with any power connected, and have an electrician handle a hardwired disconnect.