octo$teve43 wrote:there is supposedly a line from the boat at 115' or so to the troll is that true?
Yes, there has been a line running from the sunken boat to the "Troll" for years. However, I haven't dived the site in a few months, so it is possible that the line is no longer there.
Even if the line is in place, keep a sharp eye on your compass so that you firmly understand your location at all times. The Troll is actually on top of a large underwater "knoll" and you will be ascending as you approach it from the sunken boat. Once you leave the Troll and start to head in toward shore you will be descending from the top of the knoll before you once again begin to ascend the slope toward shore, (if you follow the bottom contours). You literally will be going deeper before you can head up the slope. This can easily confuse a diver that doesn't understand the topography, has not been keeping an eye on his/her compass and/or that doesn't understand underwater navigation very well.
The dive to the boat and then up to the Troll is definitely one for someone that thoroughly understands navigation, trusts their ability with their compass, and has well-developed gas management skills. People without those things can easily find themselves lost, confused and running low on gas - bad things to have happen at that depth.