At first I was reluctant to go very far from home after my surgery. Like you, with my UC, I had to know where all the washrooms were, had pads and cleanup cloths and underwear with me, etc.
But now I go everywhere. Just came back from Hawaii where we spent the major portion of every day snorkelling! Went hiking to remote beaches with NO FACILITIES.
You get used to what you need to have with you -- and I've found that I go to my 'travel supply bag' very infrequently now. I always have a couple of pouches and flanges, wipe cloths and ziploc bag/plastic bag with me -- sounds like alot, but all fits in a small medium ziploc. In the car I have a plastic wide mouth jar (wrapped in an opaque plastic bag - more aesthetically pleasing
) for when I can't get to a washroom to empty.
When we swam and hiked, I added a Starbucks lidded cup to emergency emptying and used that once.
I thought all this would be a depressing hassle ... but no. Yes, sometimes I have to empty when it's not what I want to be doing at that time. I'm just over a year into living with my ileo and making it work.
All the best,
p.s. a 6" rectal stump was left ... will have another surgery to remove it as the UC is active in the stump. Rectal Cancer is still a possibility when active disease is in the rectal area.