Keep Him With People He Already Trusts
The Kai Ken is a medium-sized Japanese spitz breed, instantly recognised by his brindle, tiger-striped coat, and shaped by centuries as a mountain hunting dog. He typically gives his loyalty completely to his own household and remains reserved, sometimes actively avoidant, with everyone else. That single fact should drive your holiday planning: the best arrangement is a trusted person staying in your home, or your Kai Ken staying with one of the very few people he has already accepted.
A commercial kennel, however kind, asks him to be handled, fed, and exercised by strangers in a place full of unfamiliar dogs, which for many Kai Ken means a week of stress and a real risk of bolting at the first transfer between run and exercise area. If a new sitter is unavoidable, build the relationship months ahead with repeated visits, walks together, and feeding by the new person while you are present, and accept a trial weekend's evidence over optimism.
Escape-Proofing Is the Core of the Plan
Kai Ken are athletic, intelligent climbers and diggers with a hunting dog's commitment once they decide to leave. Walk the carer's garden as an opponent would: fence height and condition, gaps under gates, compost heaps or wood stores placed as launching steps beside fences, and doors that open straight onto a road. Ask for a double-barrier habit at the front door, with the dog behind a gate or closed door before the outer door opens.
Outside secure ground he stays on lead, always, with a well-fitted harness and collar combination the carer has checked before the first walk. State plainly that he is never tied up outside a shop or left in a garden with a gate the post can open, and describe any previous escape attempts and exactly how he managed them, because he will try the same route again.
Routine, Handling, and Honest Warnings
Leave his day in its usual order and his handling rules in plain language. Many Kai Ken dislike being grabbed, cornered, or fussed over by people they know only slightly, so tell the carer to invite rather than seize, to let him approach, and to use his known cues and rewards. Note his behaviour around other dogs, which can be selective, around cats and wildlife, where prey drive should be assumed, and around visiting children, where the safe rule is calm supervision or separation.
Feed his usual food in measured portions, secure the food store against an ingenious dog, and note his normal appetite, since a stressed Kai Ken may refuse meals for a day. Give the carer clear thresholds for calling you or your vet: not drinking, repeated vomiting, injury from an escape attempt, or frantic, unremitting pacing and panting that does not settle overnight.
Contacts and a Backup If the Worst Happens
Leave vet details, an emergency contact he knows who can make decisions, and a recent clear photograph of him with his brindle pattern described, which is genuinely useful identification for this breed. Ask for daily photo updates, and arrange your return so someone he trusts is the first person he sees.
That preparation deserves a backup layer as well as good fencing, and KinsLe provides one through the Lost Pet Alert System, a free alert to nearby Circle of Love members if your Kai Ken does get loose while you are away, so a finder can message you directly and quickly.