Pedal Boats Reef Can 1 Person Pedal A Pedal Boat Alone Or Does It Go In Circles?

Can 1 person pedal a pedal boat alone or does it go in circles? - pedal boats reef

I am thinking seriously about it, get one and run on the banks of a small lake, but wonder what happens when you (a passenger is a child) is too small to pedal or have tires? (Of course, why the West is so used again.)

What happens if a passenger is much harder than the others? Or, if you own with it? Is it difficult to connect the pedals when the boat is uneven?

Thank you!