From OpenStreetMap Wiki
|leisure = ice_rink|
|A place where you can skate and play bandy or ice hockey.|
|Used on these elements|
|Tools for this tag|
A place where you can skate, play bandy or ice hockey. This tag is for places where there is substantial "infrastructure" to make the skating possible. So a lake that just happens to freeze over each winter should not be tagged with this tag.
- building=yes should be used when it's covered.
- seasonal=yes should be used when it is only open in the cold season.
- sport=* what sports the ice rink is used for. eg sport=bandy, sport=ice_skating, sport=ice_hockey, sport=curling. If several different sports, they can be listed, separated by ';'