In "The Lighthouse Mystery" by Gertrude Chandler Warner, a character is suggested to have significantly benefited financially from two main activities: selling lobsters and renting houses to tourists who visit during the summer. This highlights the economic opportunities that seasonal tourism can present in coastal areas, particularly for local businesses.

This statement underscores the dual nature of coastal life where marine resources like lobsters can be a lucrative enterprise. Additionally, the influx of summer visitors creates a demand for accommodation, allowing locals to capitalize on their properties, enhancing their financial status and impact on the local economy.