If you have a trusted person back home who you can communicate with from your destination, multisig is how to travel!
2 of 2 wallet, with a 1 of 2 time lock. You bring a key, they keep a key. You arrive, coordinate the PSBTs, and spend the keys out to your own wallet to go from there.
If your key is compromised, you'll need to wait for the timelock, and then have your trusted person send them unilaterally to your new wallet, and go from there.
"Trusted" is the super duper important keyword here. You need to trust the person you enlist to work through it with you. They'll know your balance, and technically they can steal your coins.