SUNDAY, MARCH 11, 2007. PARNAIBA, BRAZIL. Today we took a short boat tour of the Parnaiba delta, the only delta flows into the open sea. It was very similar, but a lot smaller, than the Okavanko delta in Botswana (Africa), where I visited earlier in my RTW travels. We plan to catch a bus to Tutoia this afternoon as we continue our way northwest to Belem. Due to the fast pace of our travels, my journal updates may be a bit behind than usual.