Here is a situation that is good for both the domme and the sub: The domme rubs the sub until just before the point of climax, releases him, and he goes down on her. He thanks her and she says you're welcome. Repeat this five or six times, until the domme is fully satisfied, and then she slaps a cock cage on the sub to keep him pent up. That process keeps the domme relaxed and the sub focused.

A fun day - a trek up to the Hollywood sign followed by a trip to the gym. I need more nature in my life

I am sitting here pondering what vacation I will take this year. I am drawn to the Great Barrier Reef. But the idea of a white water rafting followed by a trek up Matsu Picchu speaks to me too.

A true sub, on one level, loves it when his domme enjoys things that he does not (assuming they are not agreed upon limits.) During the activity itself he may be miserable at some point. But he will work through, and this will help him to appreciate his place, and understandable that his place is to please. I am by no means a masochist, but something is wrong in a BDSM relationship if the sub is not miserable a certain percentage of the time, because that helps the sub shed any self absorption.  In the same way, I think it's very important for the sub to tell his domme truthfully what kinks he enjoys and which he dislikes, so she can use this information as she sees fit.