What is there to do in the Galapagos National Park? Does anyone know? ?

I have a spanish project and I need to know what can be done in El Parque Nacional de Galapagos. (Galapagos National Park) Please Help. =)

I live and work in Quito and I have found V!VA Travel Guides to be the best source of information for the Galapagos Islands. Here is the link:

http://www.vivatravelguides.com/south-america/ecuador/the-galapagos-islands