Skating under Pretoria Bridge - a stop along the Rideau Canal Skateway in Ottawa Canada.  This is a table lift bridge in downtown Ottawa.  The Rideau Canal Skateway is the worlds largest and longest skating rink at 8km.
<a href="//commons.wikimedia.org/wiki/User:Cbuske46" title="User:Cbuske46">Cbuske46</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>