First post here... I was out surfing yesterday in Spring Lake, NJ. As I approached the water from the sand I noticed that the water was unusually reddish-brown in certain areas. I proceeded to enter the water. While in the water there was lots of seaweed and even some red seaweed which I haven't really seen at this spot, as it is my usual spot to surf. As a wave would roll in you would see these dark reddish-brown objects that looked like sting rays but I just kind of figured they were just large clumps of seaweed. Another 5 mins went by and with every wave that rolled through I noticed the same objects over and over. Eventually we saw a fin come out of the water and realized these were sting rays... I just thought it was very weird that there were SOO many of them in the water. We also saw a few larger fish swimming around.. Needless to say we left the water as we didn't truly know what was in the water. Anyone experience or see this yesterday? Is it the warmer water temperatures bringing in this type of wildlife? Also, I heard they spotted a shark in the Manasquan Inlet yesterday as well. Not trying to start any sudden scare or anything, just curious as to what type of sting rays they might have been and if any one else saw the same as I did?