We never know where we'll land (find out why) so it's important to protect your feet from grass burrs, because it's very likely we'll land in a field. To get in and out of the gondola (balloon basket), you have to climb in and out, so it's important to have clothing that allows you to bend easily.

Generally, yes, you must be physically able to climb into and out of a hot air balloon basket. Most standard baskets are about 4 feet (1.2 meters) high and do not have doors. They are equipped with two or three "foot-holes" on the side that act like steps on a ladder. Passengers must be able to lift their legs and pull themselves over the rim. Additionally, because landings can sometimes be "sporty" (the basket might tip or drag slightly), passengers are typically required to be able to stand unaided for the duration of the 60-minute flight and brace themselves for impact. However, some larger commercial operators now offer accessible baskets with a built-in door or a seat for those with limited mobility. If you have concerns, it is vital to contact the operator in advance to see if they have a specialized "easy-access" basket available for your flight.