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Wall of Ice

School evocation [cold]; Level bloodrager 4, magus 4, sorcerer/wizard 4, summoner 3, unchained summoner 4; Bloodline boreal 4; Elemental School water 4

CASTING

Casting Time 1 standard action
Components V, S, M (a piece of quartz or rock crystal)

EFFECT

Range medium (100 ft. + 10 ft./level)
Effect anchored plane of ice, up to one 10-ft. square/level, or hemisphere of ice with a radius of up to 3 ft. + 1 ft./level
Duration 1 min./level
Saving Throw Reflex negates; see text; Spell Resistance yes

By the way...
The effects created by this spell move with a ship.

Source Skull & Shackles Player's Guide