Spinning is definitely no ride in the park, though. It will amp up VO2 max (the rate oxygen is carried to the muscles), a sign the body is being pushed. Plus, all that pedaling will work your quads, hamstrings, glutes, calves, and core.
Starboard side - Port side. The sidelights are coloured either red or green. The sidelights determine the priority on the water: the color displayed on the starboard side is green and the red light is on the port side. The sidelights are located in front of the boat.
The right side of the boat is called the starboard side because it was the side the 'steering board', which we now call an oar or rudder was mounted. Starboard is the old seaman's bastardization of steering board. Since the steering board was mounted on the right side of the boat, that side could not be tied up to the warf or dock when in port. Therefore, the left side of the boat is called the port side because it was the side that was tied up to the warf or dock when in port.