Annually Second Life hosts a number of Winter themed regions with ice skating, skiing, sledding, snow scenes and fireworks.
https://secondlife.com/destinations/winter
Adagio’s Winterland Lake
https://secondlife.com/destination/adagios-winterland-lake
https://maps.secondlife.com/secondlife/Adagio%20Breeze/192/88/1201
The Winter Garden at Akijima
https://secondlife.com/destination/the-winter-garden-akijima
https://maps.secondlife.com/secondlife/Akijima/64/104/3502
Coeur Lac d’Annecy Ski Resort
https://secondlife.com/destination/coeur-lac-dannecy-ski-resort
https://maps.secondlife.com/secondlife/Coeur%20Lac%20Annecy/51/21/2179
Lemon Tree Winter by Lian
http://maps.secondlife.com/secondlife/Miamia/159/228/22
Simurg Wintervalley
https://maps.secondlife.com/secondlife/Lunar%20Valley/171/57/37