Underwater Journal issue 21 is now available for download. In it, there are two feature articles by Wetpixel members Tim Rock and Doug Ebersole. Tim provided a story on diving with humpback whales in Tonga, with Doug bringing us whale sharks off the northern tip of Yucatan. Also in this issue are articles about CCR diving with trimix, and diving in Rangiroa.
Underwater journal is a free download available in iPad or pdf versions.