During this episode, there are regular very heavy tremors from the volcano. The travelers are often at a camp that is next to the ocean's edge. The water is very calm, no beach waves, not even with the very heavy tremors occurring regularly. The water is completely still in most scenes.
Trivia: First time that the Project establishes voice contact with Doug and Tony.
In a scene about 18:00 min into the story, Eve Holland addresses Tony as Phillips. Throughout the rest of the scene, she refers to him as Doctor Newman.