Near Spencer Glacier (may be in every park in Anchorage)

Alaska is a bear country! And, wild animal country! But, the worst wild animal, Humans, may be minority!

The algorithm goes like this:

If you are on a bike and see a human(s)/bear(s) walking on the trail:
     If in the same direction, you may continue behind her/him/it/them;
     Else, politely go to the side and wait till he/she/it/them pass by, and say 'hello'!

If you are a human and see a bear(s) walking on the trail:
     If in the same direction, you may continue behind it/them;
     Else, politely go to the side and wait till he/it/them pass by, and say 'hello'!