X-country skiing is great for off-season training. Unfortunately, it requires snow and there's never any guarantee of that. Snowshoeing is great, too, but again needs snow. I am always the one praying for snow and most people think I am crazy. Anything that keeps one active and moving during the off months is going to be a good thing.
As for social events/ rides, I just was on one this past weekend. It was a halloween ride, costumes mandatory. It took place in the dark so lights were also needed. Coming up with a costume that you can ride in and stay warm in and then party in after the ride is always a challenge. I went with 8 other friends. We were bikers of the other sort, Harley riders in lots of black leather, fake tatoos, etc. We put balloons on the bikes, next to the wheels so we sounded obnoxiously loud. It was such a good time! Unfortunately, we didn't win the costume contest, but we sure had a lot of favorable comments on our outfits.
We also have a Christmas ride and ride in appropriate colors. But that's not for awhile yet.......
Time is a companion that goes with us on a journey. It reminds us to cherish each moment, because it will never come again. What we leave behind is not as important as how we have lived." Captain Jean Luc Picard