We finally started our retirement planning in our mid-forties. That began our first discussion of "what do you envision retirement as?"
DH is very self-sufficient and would make an excellent hermit, now that Amazon Prime and eBay exist to fulfill on-line shopping needs. He is a long-time wargaming enthusiast - Warhammer 40K - and our garage holds not our car, but thousands of models, paints, and landscape squares.
I have multiple hobbies, and one is spending way too much time on the Net in various forums, LOL.
He's not big on traveling, while I enjoy it more. But I also prefer to drive rather than fly, so we travel a circuit around Northern CA, with occasional forays on longer trips. Being retired, it's wonderful to be able to plan your schedule to avoid (most of the) rush hour commutes!
Our biggest issue is not wanting to leave the house unattended for long periods of time. Casual crime burglaries are rampant in the city, and with almost all our neighbors still working, very few people are around in the daytime. It's obvious, too, since 90% of the cars disappear off the street every weekday morning - few homes in coastal CA have basements or attics, so everybody uses garages for storage!
Traveling for us is a little different. We don't play tennis, golf, or fish. We don't go to spas, concerts, or theatre plays. I love to dine out, and DH likes to eat, so our travel focuses on food.
I usually throw in a little art or architecture touring, something historical or whimsical, a small amount of shopping.....we keep it relaxed, loose, and always enjoy ourselves. When we're on a trip I'll often just drive for the fun of driving around for a few hours. Stop for a cappuccino or a pastry, stretch our legs for a bit wandering around, then back to the hotel before going out again for dinner.
When we first retired we did some Road Scholar trips around the USA. But although we really enjoyed them, we weren't completely in love with the whole 'group tour' thing. We've enjoyed traveling on our own much more. So that was a change from what we had envisioned.
I enjoy traveling more than DH, but it is a goodly amount of work to play "travel agent", given our preferences. As recompense for not traveling abroad, we've found tremendous pleasure in being able to delve more deeply into the places we visit, because we periodically return over the years. We enjoy discovering those unusual places that most visitors miss, as they 'check off the standard list' of high-profile attractions.
It's been a very happy and satisfying ten years of retirement together. We have a comfortable daily routine of meeting up for meals but doing our "own thing" for most of the day, then spend our evenings together working on our tablets. I'll plan a trip - anywhere from 2-7 days - every couple of months, which make a perfect break in routine.
2019 has had less travel, as we're having a bunch of remodeling projects done which suck up the cash. Hope to get back into the swing of things next year!