Depending on the individual's choice, hobbies can be either easy or hard. In the leisure time, some people enjoy doing easy activities which needs less physical and mental stress and others love to continually challenge themselves with striving hard. While easy hobbies can be enjoyable, I believe that the more adventure we do the more enjoyable moment we have in life.
To create great memory, we have to do something different from our daily activities. Most of the people prefer to choose risky activities in their leisure time. For example, in the world today, bungee jumping, rafting, trekking have become the first choices of holiday activities for the people. I have also experienced many trekking and expeditions, which are the most memorable moments of my life so far. In addition, five minutes bungee jump was the shortest and most extreme event I have ever done. I believe these types of extreme activities eliminate usual minor fears of our life.
On the other hand, some people choose easier entertaining activities. They think taking high risk in life can be hazardous; the climax might be disaster. Singing, dancing and playing cards inside a close room can be a great fun for those people. That type of activities gives different type of pleasure. It's easier to gather people for such type of events, while very few people want to join adventure. Furthermore, many office workers like to hang out in pub and restaurant bar in their weekend; they don't want to get tired by strenuous tour.
I believe that the hobbies should be physically and mentally challenged; more difficult than the work we do in our daily life. From those extreme adventurous events we can make our life's moments more memorable and enjoyable.