Flayr's burning curiosity once again gets the better of him, and he approaches the chamber. He hurls the mote of fire into the chamber to illuminate it for a few brief seconds before the flame is extinguished.

Perception: 16

Flayr then immediately conjures a second mote of fire to replace the first.

Your eyes follows the flame as it simmers through the water.  It slows and the water moves heavily as the flame enters the tunnel section.  It doesn't stop, but it is definitely running into some form of resistance. 

Kabarr leads with his sword forward to test the resistance.

As you push the sword into the tunnel, the water pushes back; almost like it is purposely resisting against you.

Rolen will use a Divine Sense to see if there is an evil force behind this water.

Rolen reaches out, sensing the purity and alignment of the area.  You sense that there is no beings of undeath or other plains around. 

Kabarr attempts to walk through the barrier.

The harder Kabarr push against the barrier, the harder it pushes back against you, but you are able to slowly make progress. 

Flayr scratches his chin. "Do you know anything of this?" He asks their sahuagin guide.

Quoral shakes his head; "Don't know what could be causing this." He slowly moves his hand into the water; and the slower he moves the farther he is able to push into it. "Whatever this barrier is, it seems the less you fight against it, the easier it is to penetrate."

Kaimos straps his weapon to his back to free his hands and swims slowly forward as well. 

Kaimos, there is resistance from the water; but other than the sensation of moving through a semi solid liquid, it still acts like water and your water breathing magic item continues to function normally. 

Kaimos relaxes and doesn't try to force his way as he continues to swim.

Do anyone else follow?

Rolen follows the group.

Flayr hesitates, glancing at Kabarr. "After you." 

(I thought I went first.). Kabarr proudly moves forward.

(My bad.)

Somehow managing to break out in a cold sweat, a remarkable feat considering his current depth, Flayr grips his quarterstaff tightly and steps into the barrier.

You each make your way into this strange water, one by one; until it is Flayr's turn.  As soon as Flayr walks in, hand still ablaze; the flame suddenly stops and the water feels like it is moving aggressively. 

(Reflex save everyone.)

(reflex? do you mean dexterity?)