Wherever there is adventure, there is also danger. The most important item that you must take with you is a first aid kit. You don't need to buy a special kit; you could easily make youe own. You need to include aome painkillers,bsome cream for insect bitess and sting, and gauze and bandages for any injuries. If you don't think you'll be able to buy them on vacation, it's also good idea to make throat logenges and pills vacation. You can get sunburned when you're sailing,hiking,or cross-country skiing,too