I would do a horse ranch just north of San Francisco somewhere on the coast between Marin and Mendocino. It would be more pleasure than business, but I would breed good stock. I would import a retired Scottish shepherd to train border collies for work purposes and have a small herd of sheep they would work with. I would offer Coloma a position on the ranch, as I believe she knows horses much better than I.
The house would be a brand new Victorian or Queen Anne, the interiors would have high ceilings, some large windows, dark woods, well lit by elaborate chandeliers, etc. It would be high on a ridge with a westward view of green, rolling knolls, Eucalyptus and the wide, blue Pacific not far beyond (I want to hear those magnificent waves crashing against the cliffs) and north to the rocky escarpments of Cape Mendocino and south to Point Arenas. Views to the east would be of the giant redwoods as they rise upon the next ridge and touch the sky.
The stables, barn and other outbuildings would repeat the architectural style of the house. I envision the place high above the Pacific on the north side of Coleman Valley Rd. about a mile before it comes to a T-stop at the cliffs along Hwy 1. They have/had fine horsetrails throughout that part of the coast. The beaches are beautiful, often secluded in rocky coves and wonderful for brisk rides and general horseplay. I’ve never known a horse that doen’t love going to the beach as long as there is plenty of fresh water. I think the place where the Russian river enters the Pacific at Jenner would suffice.
I would like to have a fine apartment in SF, on one of the hills, with a view from the Golden Gate to south of the Bay Bridge. Business and pleasure. Maybe a getaway in Paris with a view of the Sacre Coeur, but I might be getting geographically over-extended here.
I would visit Flutherites as a kind of hobby. I know one that I’d like to approach in a store or something and try to start up a conversation with her. If she gets too freaked about why I know so much about her, I would simply show her a copy of The African Queen and smile. I expect to get punched in the shoulder for that, but it would be a friendly punch. I wish I could have shown up at Gail’s house in that last Spring and anonymously offered my services as a helper to get in that last season of King Edward Tulips for her. They were so important to her and she planted a field of them that she could gaze upon from her windows every year.
I would also do pretty much the same as @Cruiser (above). Some of my work in this area would be with local children. I think they would enjoy roughing it for a night or two on weekends after a day on horseback, pitching tents, learning some woodcraft, eating cowboy beans by the fire. LOL. They would be assisted in every way by trained counselors to ensure that it was a pleasurable experience for them.
I’d keep a 53ft Pearson motor-sailer at the dock at Bodega Bay for the same purpose and to hold classes in Algebra, Geometry and Trigonometry disguised as Navigation on week-long trips up and down the coast for kids who are struggling in those subjects.
With enough money, I would be working quite a lot of hours.