10 News on Instagram: "A relaxing day on Sydney Harbour took a dramatic turn for a group of friends on a sailboat when a party boat collided with them. Footage captured the moments after the packed party boat struck the anchored vessel near Little Sirius Point at around 3:30pm on Saturday. “We heard a massive crash, bang and then crunch, and then smoke started coming from the boat,” one of the people onboard told 10 News. “The party boat had managed to jam our anchor around their propeller, so w