Sometimes life near the beach is nice. With fish and chips, swims on hot days and watching sailboats on the water.
Other times it isn't so great, with annoying seagulls, sand everywhere and runaway trains destroying caches!
Let's enjoy the positive side of the beach with a nice easy multi here.
At the given coordinates gain the following numbers from the artwork to find the final:
The number of seagulls flying = A
The number of non-flying seagulls = B
The number of sailboats = C
The number of orange letters = D
The cache is hidden at:
S34 54.B(C-A)C
E138 29.(D-B)C(D+B)
The checksum of the seconds is 18.
Stealth is a must at GZ, please replace cache as found to continue the experience for others.