There are many opportunities for people to make a difference in Senegal. Projects Abroad (http://www.projects-abroa...) is a volunteer organisation based in St Louis with opportunities to help out teaching English, caring for underprivileged children, teaching sport or being a human rights advocate amongst other things. Volunteers get to stay with local host families, which is a huge honour.
Go an a 3-hour mini-safari in your own car or hire an off-road car at the reserve. You will see giraffes, rhinos, elands, antilopes, many birds