It is advisable to debrief between the two attempts. Keep time to see how long it takes for both rafts to cross the lake. Have them make another attempt to beat the original time. Initiative games were designed to improve cooperation and esteem of all persons in a group, including visually challenged, physically challenged, wheelchair users, etc. This may not always be obvious at first, but part of the challenge in initiative games is to include every member of the group.
Ablebodied persons can guide or assist more challenged individuals.
Different games can also be created to include all persons using your equipment. The decision can be left up to the teacher or group as long as inclusion and safety are both met. The challenge of including all group members is a lesson that will become second nature to game players in all aspects of their lives.