We have previously discussed Dana’s life as well as Two Years Before the Mast fairly thoroughly.    Another look at Dana’s actual voyage as well as other maritime heritage information can be found here:

http://www.maritimeheritage.org/

You may read Chapter XXI of Dana’s Two Years Before the Mast here:

http://www.bartleby.com/23/21.html

Alternatively, this may be listened to in an audiobook format here:

https://www.youtube.com/watch?v=GzXuP7dd9d0