I believe they are open year round. I know there are many signs posted near bridges and potential fishing spots.
From what i have been told they are 2 separate rivers but the Rainbow river flows into the Wairau river at the headwaters.
in the sky or where a river is
rainbow waterfall
The Ob river is frozen all winter.
Niagra Falls
The River Bushwillow can survive in both Winter and Summer
the bob river
The orange river
Yes, the St. Lawrence river freezes over each winter.
a rainbow
you go through a candy river that leads to a rainbow,and you go over the rainbow to the unicorn forest
Somewhere over the rainbow! It is an alternative name for part of the Hudson River, North Eastern New Jersey