After the gift-giving is over and children are already bored with their toys in a 24-hour period, SnowWorld at Lanier Islands offers some outdoor activities with a wintery feel. Lanier Islands conjured up SnowWorld, which is a white and wintry flurry of fun. The family-style activities feature nine thrilling speed slides; the Polar Plummet — a 13-lane tube slide; four snow play zones; skating at the Polar Rink; and eight family friendly eateries and firepits throughout for roasting marshmallows and making s’mores.