My favourite sabbat Samhain is coming up on 31st October! (My other fave is Lammas). It's on a Saturday this year. I started celebrating the sabbats in 2010, and since Hallowe'en is the modern version of Samhain, I celebrate both these days.
Note: If you're in the Southern Hemisphere Beltane is almost here! Check out my Beltane Celebration posts here:
Beltane Celebrations Ideas: https://livingseasonal.blogspot.com/2017/04/beltane-celebration-ideas.html
Celebrating Beltane/May Day: https://livingseasonal.blogspot.com/2018/04/celebrating-beltanemay-day.html
April Update + Beltane Inspiration: https://livingseasonal.blogspot.com/2019/04/april-update-beltane-inspiration.html
More Beltane Inspiration: https://livingseasonal.blogspot.com/2020/04/more-beltane-inspiration.html
For the past few years, I've done celebration idea posts which you can see below:
Hallowe'en/Samhain Celebration Ideas: https://livingseasonal.blogspot.com/2016/10/halloweensamhain-celebration-ideas.html
More Hallowe'en/Samhain Celebration Ideas: https://livingseasonal.blogspot.com/2017/10/more-halloweensamhain-celebration-ideas.html
Celebrating Samhain/Hallowe'en: https://livingseasonal.blogspot.com/2018/10/celebrating-samhainhalloween.html
And last year I wrote a series of Inspiration posts for the sabbats. Here's Samhain's: https://livingseasonal.blogspot.com/2019/10/samhainhalloween-inspiration.html
For Samhain/Hallowe'en 2020 I'm sharing more inspiration. As I've written quite a lot on Samhain in the past, I'll just give a brief background and then share some ideas for celebrating. :)
Samhain is the 3rd and final harvest sabbat on the Wheel of the Year and takes place on 31st October. Although some may celebrate from sundown on 31st Oct till sundown on 1st November. It is a cross quarter sabbat, and follows Lammas at the start of August and Madron/Mabon aka the Autumn Equinox in September. This festival is also called the Witches' New Year in some circles. As mentioned before, some people end the old year and start the new year at Samhain (I tend to think of it in this way), whereas others consider Yule/the Winter Solstice to be the start of the new cycle.