See all. 1  Rocky Mountain National Park. 2  Mesa Verde National Park. 3  Winter Park.  Grand 1  Lake. Colorado Trail.  Browns Canyon National 1  Monument. Glenwood Caverns Adventure  Park.
The bladder stores urine until you are ready to empty it. It swells into a round shape when it is full and gets smaller as it empties. A healthy bladder can hold up to 16 ounces (2 cups) of urine comfortably. How frequently it fills depends on how much excess water your body is trying to get rid of.
Kidneys process at a rate of 800 to 1,000 ml an hour (The maximum rate, assuming you're already well hydrated). The average bladder is capable of holding 400mls in a daytime setting (it increases during sleep) So. 1 hour before your bladder starts filling up at a rate of 800ml an hour.