. >> i have seen some very close calls here on the rocks at sharks cove.he thing is about this area on the north shore is when the waves come in, you don't know they're coming until they're there. >> february 5th, 2011. drew and a group of conservationists volunteers are keeping a look on the waves. >> we're here every saturday to help provide information to the public and protect the marine life area. we watch the fish and watch the people. >> in the wintertime there are a lot of visitors that come here to see the rocks with the explosion of white water. it's a common sight to have people taking photos here. >> on this particular day, a pair of tourists mother and son will get more than a view of the waves. >> when i first saw the couple walk out on the rocks i initially tried to warn them as did several other people on the shoreline. >> our first instinct was to yell at them and warn them because the waves were crashing over the rocks but they of course couldn't hear us. >> the tourists are unaware that the waves in this area can be extremely unpredictab