Logum will perform the ritual he learned from the fisherman before going on this quest. He thinks to himself *If we are going to the sea, better to have a little favor with it*

Sen'ra will buy 2 rations for one gold.

After buying the provisions they need for their travel, the group is lead by the hobgoblin captain to the coast located on the west part of the island.

A large cave covered with moss and algae is facing the sea as the waves slowly crashes to its entrance. Bats are seen sleeping from the ceiling while small crabs and fishes are swayed by the receding waves. A tall wooden sign near the entrance stands which states, 'Danger, enter at your own risk'.

The group starts to move deeper into the cave until the sunlight doesn't reach their location. Total darkness is ahead of them.

( Create a marching order. Cave is 15 ft wide and 20 ft in height. Also post what you'll be doing while trekking through the cave. )

Alton will find a spot behind those that have more armor then him and look like they can take a hit. Unlike how he normally acts he will not be going out of his way to draw attention to himself. Surpringly he seems to be rather serious as his hand rests near his newly acquired shortsword. Despite this he will still hum along to a song he heard that had become stuck in his head.

Logum will to cast light on an item his goliath or human compatriots are carrying before slinking ahead into the darkness with the hood on his cloak of elvenkind pulled up.

Stealth: 9

Rinc will take the lead of the main party while Logum moves on ahead.....allowing about 30' between the party and Logum. 

 So long as Logums light is illuminating the way Jeff won't light his lighting sources. He will stay near the back of the group, giving him the option to use his bow or his long sword depending on any conflict that comes up.

Riskah looks at the light on their shoulder and moves up front next to Rinc, they will be scanning the area for danger.

Sandral will attempt to keep near the centre of the party, ready with his spells should something arise.

Perception: 18

Stealth: 3

Rinc will grab the light source (assume a  stone) and will hand it to Riskah to hold.  "In case we need to hide you can pocket it or cover it."  This will allow him to hold his shield at the ready and be able to grab his sword quickly.

So march order looks like below (I just assumed Alton and Sen'ra position based on comments...)

Logum scouting ahead

Rinc, Riskah, (Sandral at center),   Alton, Sen'ra

with Jeff bringing up the rear.

Sen'ra still has to make his position for the marching order.

Sen'ra will take the front, and cast produce flame to light the way.

Marching order:

Logum>Rinc, Riskah, Sen'ra>Alton, Sandral>Jeff

The group started moving through the cave's interior. During their walk, the group sees large natural stone formations and the sounds of dripping water coming from the stalactites hanging from the ceiling. Sandral sees tiny insects crawling away from the group.

After hours of what seems to be an endless trekking through the cave, Logum arrives early at a large cavern with shallow water. Upon stepping on it, he felt that it was unnaturally cold.

On the other side of the water, he sees a deep chasm and a rope bridge suspended on top of it. There is also a sound of a waterfall coming from its left.

On his right side, there is a dry path leading to a passage that seems to go upwards.

Logum will make his way back to the group. He speaks in a hushed tone. "There is a cavern filled with shallow water up ahead. The water is strangely cold. We could either continue straight across a bridge, or head up a path to our right." He ponders a moment. "I don't know if we've gone far enough yet, but I would think a path up would lead out."

Survival check to determine which way to go: 22.

He will also recast light to keep the spell going longer.

Logum tries to identify any signs of nearby living creatures that have gone through but to no avail.

Upon casting of Light, he sees a patch of brown mold up ahead submerged into the water.

"The bridge shows signs of someone using this path." Sandral advises, gesturing towards said bridge. "I think if we go that way, we're more likely to find those we're looking for." He keeps himself prepared for any unwelcome guests, be it stirges, creatures of the deep, on any other sort of monstrosity.

Alton will let them talk as he listens to the conversation, his hand going back to his short sword once more as he does not really want to be surprised and caufht unaware without a weapon close at hand. The halfling bard will look to the rest of the party to try and gauge what there own thoughts on the matter are by what they say.

"I say the bridge as well, don't see a need to go into some freezing lake"

"I agree, we should take the bridge. Although I think we have to cross the water to get there. We just need to be sure to avoid that strange brown stuff there." Logum points to the illuminated brown mold.

"Well then if we must cross we best check how deep it is as I am not sure how well I would be able to swim in the deeper water." Alton tells them, not quite hinting that they should ferry him across yet.