First Things First
There’s plenty of public transport in Izu, but a car is recommended if you’re heading into the mountains to access the most beautiful spots.
Tattoos are generally not accepted in most onsen ryokan (hot spring inns) – people usually enter the baths completely naked, so attempting to cover a tattoo with a towel or swimsuit is unlikely to be effective. If you do have a tattoo, book a hotel or ryokan with a private onsen.
Japanese food is generally healthy but rarely vegetarian. Japanese stock, or dashi, is often made of kombu and bonito flakes (dried skipjack tuna) and is used in almost every dish, including plain vegetable stew. Check with the waiter before ordering.