Please choose the correct ending to complete the given sentence: Travel: [header] How to book an adventure vacation [title] Decide if you want to adventure alone. [step] If you want your adventure vacation to be focused around self exploration and discovery, travelling alone can teach you a lot about yourself. Decide to enjoy your adventure vacation by yourself so that you can do exactly what you want to do and go exactly where you want to go, having organic experiences that are specific to your interests and needs.

Ending1: [substeps] To explore your adventure, include activities that are adventurous or that you enjoy. This could be book clubs, exploring museums, traveling to nature preserves, or hiking in mountain biking gear. Ending2: Don't let your list get out of hand. Having fresh eyes can be a healthy and desirable experience and helping you remember your adventures ahead of time is a great way to connect with others. Ending3: [title] Travel with a group if you want to share your experience. [step] Travelling with a group of friends, or even strangers in a travel group, is a great way to share your adventure with others. Ending4: This is another way to stay immersed in your adventures. [title] Focus your attention on being what you desire.

Answer format: ending1/ending2/ending3/ending4