I was the Receptionist at a 2,000 member church during the years that I was sick and when I had my surgery, so EVERYONE knew about my ostomy, since I was on the prayer chain. People were very supportive and happy that I was doing so well after surgery, since they had seen me so sick before.
Now, I'm at a new job (at a church again), and nobody knows about my ostomy. I have told them that I used to be very sick with Crohn's, that I had surgery, and now I'm not sick anymore. Nobody has asked any questions, so I left it at that. I'm sure the time will come when I will tell someone, but it just hasn't happened yet. I'm not embarrassed by it, I just don't see the point in talking poo with people so soon after meeting them! :)
If you're not ready to tell people, then don't. I've spent many weekends at my sister's house, and her children don't know about my ostomy. It's possible to keep it to yourself, since you go to the bathroom alone. You'll know when the time is right and who you feel comfortable telling, especially after a pitcher of beer!
Have fun at the water park! I'm going to one on Saturday! woo hoo!!
Dx'd Crohn's in '99 at 28. Proctocolectomy and ileostomy in '06.
Disease-free, medicine-free, and very thankful to be healthy again :)