Water is a liquid sand that combines with Sulfur to make Acid.

Notable behaviors of Water:

• Harmless to player ships and allows ships to operate inside.
• Blocks creeper.
• Extinguishes fires, it does this by destroying burning sands but it keeps it from spreading further.

Water in large quantities can be used to drown out caverns of creeper:

Water can also be used to nullify certain enemies from safety: