What do the leftover letters spell?

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SUNNYBYPN HSSEASIDE IEHOCEANW NUCWAVESI TLAWATERI SCEARCADE GOBSANDIJ SCAVENGER HUNTSHOPS
1.
BEACH
2.
SEASIDE
3.
ARCADE
4.
SCAVENGER
5.
HINTS
6.
CLUES
7.
SHOPS
8.
SAND
9.
SUNNY
10.
WATER
11.
OCEAN
12.
WAVES
13.
HUNT