The winter solstice for the Northern Hemisphere occurs on Tuesday, December 21, 2021 at 10:59 a.m. IST, so by the time this event starts the days have already started getting longer. That's reason to celebrate!
Herbert Park was once called the Forty Acres, and used as bleaching grounds for linen produced by the mills on the nearby Dodder. In 1907 it was the site of the Irish International Exhibition, with 2.75 million visitors between May and November of that year. None of the enormous pavilions remain now, but today's duckpond was the splashpool for the Canadian Water Chute (the water's quite chilly, or it was when I fell into it as a small child).
The park is open twenty four hours a day, so we won't have problems with access. If the weather is inclement, the pavilion is there for shelter while staying nicely socially distant and ventilated. So bring yourself, your caching stories and your trackables - it'll be great to see you! The park even has a few new caches to find!