Do not apply sunscreen to children under six months of age. Choose glasses with unbreakable plastic lenses. For children who won't wear sunglasses, baseball caps and sun visors are good options. Do not allow children to exercise outside for more than 30 minutes at a time when temperatures reach 90 degrees or more and humidity is high. Make sure children get plenty of fluids.
Water is best before, during and after prolonged activity.
Carry a first-aid kit, children's acetaminophen, extra food, candle, matches, pocketknife, flashlight, map, compass, sunscreen, lip balm, insect repellent, toilet paper and plastic bag to carry it out. Consider taking an emergency blanket, magnifying lens, pencil and paper to record sites on long hikes. Wear comfortable, supportive shoes. Expensive hiking boots aren't necessary, but a well-built leather sneaker with ankle support is recommended to help avoid falls and twisted ankles. Plan on traveling at a slower pace than you would without children.