Now? Not much other than weekends and holidays.
I know, that probably sounds odd or backwards to many - but we find that going out during the week vs the weekend is so much more enjoyable. Loads less traffic going to, returning from, and while we're out on the trails we mostly have any trail, camp spot, or hiking trail to ourselves. So I assume most of you "get the picture" we're not "people" people. We love nature... the smells, the sounds, the feel (subtle temp changes, shifts in the breeze, bird calls, bees buzzing, spider webs, caterpillars, butterflies, and flowers).
I retired almost 3 years ago, my bride retired just over 1 year ago so we are now able to be spontaneous and (like we were and did when we were first dating and before kids) fluid. As you can probably guess already we pretty much disdain being surrounded by crowds - we already live in a large city so "escape" is our goal not being "social".
I've enjoyed reading this entire thread and am so thankful for all the responses especially the very thoughtful ones about duty to family (important to us also) and responsibility for work and income... Prior to having kids we were always in the woods either climbing with friends or out on the trail backpacking, or in a canoe or kayaks on a river system somewhere camping on a sandbar or island. I'm so fortunate that my wife is a biologist and avid outdoors person so we've always gone into the forests in one fashion or another at least once but usually twice per month. After kids came we just took them along but often shortened the trips somewhat due to new packing requirements (diapers, dirty diapers, baby food...) and the fact that they got tired and grouchy.
As they aged the girls (2 daughters) loved hikes but wanted to take their friends - however most of the time the parents of those childhood friends didn't want to or "couldn't" go "camping"!! So weekend day hikes became the plan-of-action but usually more like once/month.
Now both girls are on their own and we're back to our own schedule and plans - surprisingly to me and very often the girls want to meet up and go with us on our camping trips into the woods, or more recently into the deserts of AZ and CA. Now THAT is so special as a parent! That they remember so many good times in the forests, on rivers (canoeing) while camping, campfires, even sometimes going to and camping on the beach etc. They almost always bring a friend, boyfriend, etc. and what was, at least for me, so neat was that I could pass-down my older packs, sleeping pads, sleeping bags and tents to them - and they still get used!!! Both girls go camping on their own even when we're not in the picture. We never "made them" go along - if they wanted to "bail" we would allow them to spend the night with friends, as long as we had talked to the other parents - since back then there weren't cell phones and the other parents had to assume all responsibility even if there was an illness or injury since we were completely out of touch.
So all you folks putting in the hard work of WORK and KIDS... be assured that it does come back to you as an option. We did retire early BTW since we saw many of our friends either wait for later retirement then get a serious life threatening illness, injury, or just die unexpectedly. So as was said by one poster earlier, live now... Don't put it off, find a way to make it work so that your life isn't always a burden and challenge.
Use what you've got, it will never be perfect anyway regardless of how many mods you make. Do, and enjoy, what is within your skillset and, as often as you can, push your comfort z0ne just a bit to build more confidence and skills for new adventures.
