RedactedNarrative: Kayak tour group of 11 kayaks was traveling the Hudson river in the vicinity of pier 79 a busy ferry terminal.  Kayak guide failed to warn ferry and both failed to avoid collision.  Vision of ferry was restricted by sun's glare and ferry was traveling at excessive speed of 22 knots as a result.  5 kayakers were taken to the hospital for injuries with two seriously hurt.  Note: it is unknown how many kayaks possessed injured persons.  It is known that 5 kayakers were injured.  For the purposes of data collection, each injured kayaker was associated with an individual kayak.