Estrela do Mar - SUE
Start:

Marker

On the marker is a number with 4 digits.
Take this for a/b/c/d.

Sign

On the sign is a date and some numbers left of it.
Take for e/f the 2 digits left of 99.

(used digits: 1/2/3/4/5/8)

Note the numbers and walk
to the beach.

3