The coastal trail winds beneath flying flags of warning, surfers reading the air whereas breakers hurl white thunder ashore

https://connerkdba025.juniperbrief.com/posts/unraveling-the-stars-and-stripes-the-symbolism-behind-the-revolutionary-war-flag

The coastal route winds below flying flags of caution, surfers interpreting the air at the same time as breakers hurl white thunder ashore.