Bicycle off-city trips

A week ago, I had joined a bicycle club, and took part in two off-city trips, during weekend, -- about 100 km distance each, with 20-25 km/hour (up to 30) average speed. These were not competitions, but nevertheless they gave some physical load, and after them, sleep is deep. I plan to continue such trips. I hope that such physical exercises will increase my overall productivity and feeling, and give some energy. Aside from this goal, Saint-Petersburg's suburbs are very beautiful in nature, and have strong historical meaning and trace.