The Shore Thing

Summary
Arthur and D.W. beg Dad to take them to Aqualand—the coolest water park ever! But Dad knows an even better place—Ocean Zone. The kids explore the ocean and find all kinds of cool sea stuff by the seashore.

Major

 * Arthur Read
 * Buster Baxter
 * Binky Barnes
 * Sue Ellen Armstrong
 * The Brain
 * D.W. Read
 * David Read

Minor

 * Pal
 * Nigel Ratburn

Cameo

 * Bitzi Baxter
 * Mary Moo Cow
 * Jane Read
 * 3rd Grade Male Dog
 * 3rd Grade Male Rat

Trivia

 * When the sun goes down, David's skin changes to the same color as Brain's.
 * This is one of the episodes that focuses on water, others being Arthur Makes Waves, D.W. All Wet (episode), Water and the Brain, Swept Away, Feeling Flush, D.W. Swims with the Fishes and Buster Baxter and the Letter from the Sea.
 * Sue Ellen mistaking Mr. Ratburn for a shark could be a reference to the show's intro.