On Layer 6 is a group with 5 reed variations, which can be linked or appended to other projects. The demo scene has on layer one a particle system setup with this reed group, on layer two a plane with an ocean modifier and a water material and on layer three you find the volumetric fog. Camera and light are on the layer below layer one. Hope you like it!

Credits for the Pterosaur in the image go to Jeff2207 (not included in the blend)
http://www.blendswap.com/blends/view/73510