THRYVE · HYDRATION
A full day at the park?
Ten-plus hours on your feet in the sun — Disney, Universal, a county fair — quietly loses more fluid than a normal day, and plain water alone can fall short by afternoon. Answer a few honest questions and we'll turn it into a real daily number, flag when electrolytes matter, and show you the heat-illness signs every family should know before the meltdown, not after.
Your estimated water for the day
Enter your weight to estimate it.
Do electrolytes matter today?
Tell us about your park day below.
About you & your park day
A few honest inputs make this yours, not a generic rule of thumb. (Do one for each person — kids' needs differ, so use this as a general family guide and ask your pediatrician for young children.)
1 · Here's what we found
2 · What to actually do (lifestyle first)
3 · Resources
Get the park-day hydration cheat sheet
How much water to pack per person, the real signs someone's overheating, refill-station tricks, and the heat-illness signs every family should know. No spam.
General educational estimate for adults, not medical advice. Children's hydration needs differ and are more sensitive — treat this as a general family guide and consult your pediatrician for young kids. Hydration needs vary; certain conditions (kidney, heart) require a doctor's guidance — consult a healthcare provider, especially if on medication, ill, pregnant, or on a GLP-1. This tool does not diagnose, treat, cure, or prevent any condition. Baseline assumes ~33 mL/kg/day of total water adjusted for activity, climate, and time in heat; roughly 20% comes from food, so the headline number is the amount to drink. Over-drinking carries its own risk (hyponatremia) — don't exceed about 1 L (32 oz) per hour sustained. For confusion, fainting, or suspected heat stroke, call 911.
These statements have not been evaluated by the FDA. Thryve products are not intended to diagnose, treat, cure, or prevent any disease.