Heather was wet when she tagged Sierra, but right before the tidal wave caused by Sierra's dive soaked Team Amazon, Heather was dry. Also, Cody wasn't seen with The Amazons during Sierra's dive. Similarly, Gwen is seen dry when Heather tags her, despite her being soaked by a near tidal wave.
When Heather and Courtney crash into pool after during the bobsledding challenge, they are seen in their regular clothes instead of their bathing suits.
After jumping off the cliff, Sierra is not seen tagging Gwen. Heather tags Sierra, Sierra jumped and got to the top of the cliff, but then Heather tagged Gwen.