What are some hobbies that involve a lot of travelling?

Hiking/Mountaineering
There are all sorts of incredible opportunities for travellers who love to hike. Even if it’s just a simple walk around the neighbourhood, you’re staying in. Most countries will have some mountains to climb. And if you’re a professional, you can specifically organize your trips around mountain ranges you have always dreamed of climbing.
Writing
Your journal, your novel, or your blog is, in a sense, your best friend. Writing is beneficial for a solo traveller since it helps organize your thoughts. When you travel alone for a long time, you will have all sorts of ideas, some of them are excellent, and some are terrible. When you write them down, you’ll be able to judge them later in a different state of mind. You can use a laptop if you prefer to type or even use a small notebook. There’s always good material to write about when you are on the road.
Photography
Photography is pretty popular with travellers and is coherent with the travel lifestyle. Travelling around the world, you’ll have all kinds of fascinating things to take pictures of. Landscapes, buildings, animals, people, etc., you can even use drones, underwater cameras, or GoPros.
Meditation
Like any other hobby, you can practice meditation for 5 minutes or 8 hours. And there are many effective forms of meditation, like Vipassana, Moving Meditation (Tai Chi), mindfulness meditation, or prayer. The other wonderful thing about meditation is that it’s equipment-free. You’ll undoubtedly find it easier to be consistent if you do it every day, whether it’s early in the morning or just before going to bed.
Drawing/Sketching
This is a pretty primary hobby, excellent for travellers with minimum equipment. It is easy to buy a sketchpad while travelling, and you can practice every day as you carry your sketchpad and pencil around.
Language Learning
This might be the ultimate hobby for travellers and without a doubt one of the most rewarding experiences available to us. If you have never studied a foreign language or used one, your first conversation in a different language will move and change you in ways you did not see coming. It almost doesn’t matter how basic the conversation is; the first time you successfully answer or ask someone a question in that language can be highly intense and exciting.
And here is the best advice on learning a new language:
Study independently every day on your own using traditional learning materials for 30 minutes and then talk to the locals. Initiate as many conversations as you possibly can and see how fast you’ll master the language; all it takes is a bit of confidence.