If you're looking to hydrate without drinking water, a great place to start is by drinking tea. Since tea is technically 100% water flavored with herbs, it's a great H2O alternative.
Many people out there will tell you not to drink coffee if you're dehydrated. It is not a bad option, however, since coffee is brewed with that all-important water.
Milk is a great way to stay hydrated. In fact, there is evidence to suggest that milk may be even more hydrating than water itself!
Eating fruit is a great way to increase your water intake. There are lots of fruits that have a high water content. Watermelon in particular has a water content of 92%.
Fresh vegetables, too, have a high water content. When it comes to hydrating veggies, your best bets are bell peppers, squash, and celery.
Unsurprisingly given what's gone before, a leafy salad is also a great option for hydration, since leafy greens are mostly water. Mix them with fresh veggies for a tasty, hydrating side.
Unsurprisingly given their liquid state, soups are also very hydrating. Clear soups such as chicken noodle are the best, since they have the highest water concentration.