Tandem Watsu and the Explorer Path
Tandem Watsu

In Tandem Watsu, two watsu a third between them. In a one-on-one Watsu, a holder never loses sight of how he must keep someone's head safely supported. In Tandem, while one supports the head, the other is free to focus on whatever he is holding. To the degree that someone's whole being is in every part, when the holder hugs someone's arm to his chest, he is holding her whole being to his heart. Watsu is containment. Contained, it is safe to go deep within, to let go of whatever is blocked. Another way that what is blocked within can be helped to the surface in Tandem Watsu is through the powerful stretches that the helper's bracing facilitates. In a one-on-one Watsu, whatever is released might lead us around the pool in Free Flow. In Tandem, with someone on each side, it is contained. It can circulate wherever needed. Often, at the end of a tandem session, waves rise up the spine of the one being held.
A form of Tandem Watsu is introduced as the conclusion to a Watsu Round . The whole form is introduced in a 16 hour Tandem Watsu class and expanded in Watsu 4 where it accompanies the Explorer Path, Watsu Free Flow, and instruction in presenting the Watsu Round Foundation (the first three hours in the pool that are complete in themselves).

Explorer Path

Three from any level of Watsu join on the Explorer Path. In a team, each chooses a move or theme that can be done in more than one way. They take turns exploring all the ways their move or theme can be done, getting constant feedback from the one held, and advice from the helper. Then in a Round, each introduces their move or theme during a silent session.
Once the Explorer format is learned you can meet without instructors to explore and fine tune other moves or themes, to further your creativity, and to enjoy being in all three roles in the Round.

Both the moves of Tandem Watsu, and the format and suggested themes for the Explorer Path, are listed in Harold Dull's book: Watsu Basic and Explorer Paths.