Just like you should take your car in to your mechanic for a once-over before a long road trip, retirees should also get a thorough checkup before departing on any kind of vacation, especially an adventurous one. Let your doctor know exactly what your travel plans are and what you plan on doing while you're away so you can get her stamp of approval. Then, you need to heed your doctor's advice. If she recommends that you skip the bungee jump, then don't jump off the bridge. This is especially important if you have any kind of serious pre-existing medical condition. Also, check ahead to make sure you don't need any kind of special vaccinations for more exotic locations.