Dive #9

It was time so see some historical buildings (collapsed though) and practice going with the current at Kaivannon kanava, Kangasala.

Dive time: 31 minutes
Start pressure: 230 bars
End pressure: 140 bars
Deco time: 3 minutes @ 5 meters
Maximum depth: 11,3 meters
Plan: Go with the water current, see the collapsed canal buildings.

At the doctor

I visited the doctor on monday morning and he did find something-I-am-not-going-to-write-here, but this finding shouldn't affect diving as long as pressure stabilizes well during descent.

Divemaster Lauri M

This time the divemaster who arranged the weekly dive was Lauri M. He was a very nice man and actually the first DM who kept a proper briefing on what we're going to do and asked what kind equipment we had. Very thorough, which is good for newbies like me.
I do not own a knife so he borrowed me one because there are lots of fishing lines in the bottom (it's a very popular fishing spot too). He also suggested I should get a buoy in addition to the knife.

The dive

Our plan was to go with the current in the beginning for about 100 meters and then head for the collapsed canal buildings made out of wood and follow a line that makes a triangle after the building.
We started the dive and almost immediately, in the mild current, I noticed my left ear won't stabilize so I had to surface. I waited for my partner (DM Lauri) and after a while we went dove again, but this time the descent was very slow and there weren't any problems. We were already out of the current, so we headed to the buildings, inspected them for a while and noticed the line was cut. We then searched for the line ends, but did not find the proper ones and we called it a dive.
Had I been unable to dive again would have a true loss, because the buildings were very nice!

Short history of the canal

The canal was built between lakes Längelmävesi and Roine in the beginning of 19th century and the canal collapsed on year 1830 (the same year it had finished) making the two lake levels become even. This meant lake Längelmävesi dropped 2 meters to the level of lake Roine.

The wooden structures looked almost like new, they were in very good condition.

Stuff seen: About 50cm dead perch (big!), a lot of crabs and a lot of smaller fish.

All in all, a very nice dive!