Galapagos Travel Planner - Family Tours Packing Suggestions

When travelling with children  to the Galapagos Islands there are always some additional packing suggestions:

Notarized letter from other parent authorizing travel if both parents are not traveling together
Snacks
Swimsuit that offers protection from sun
Camera (Polaroid instant picture is recommended for immediate gratification)
Binoculars
Whistle
Walkie Talkies
Snorkeling gear for smaller children
Life Jacket (PFD) for smaller children
Travel Games
Journal
Pencils for drawing & coloring
Books
Children's rubber boots for Amazon
Stronger sun lotion at least 50uv