a quick dip in the canal?

Unfortunately, bikes do end up in the harbour and every so often someone comes round to hoik them back out.

It looks as if these bikes, on the quay of Frederiksholms Kanal near Stormbroen, have been in the water a bit longer than usual

 

update April 2022:
Every Spring a team, with a diver, goes round the harbour and the canals in the centre of the city retrieving what has been thrown into the water.
This year, along with 101 bikes, the haul included:

Three electric scooters
Three electric bikes
Eight standard scooters
Seven shopping carts
20 tyres
11 road signs
30 roadblocks
A flower box

Two bins
Seven scaffolding parts
A table
An umbrella
Two ladders
47 chairs
Three trolleys
Two shotguns