Pros:
Tali is a disc golf only park just outside of Helsinki. Getting there without your own wheels is very easy; just take the 'A' commuter train out of Helsinki central to Mäkkylä and you'll be within spitting distance of the course. Also, right by the Mäkkylä station is Frisbeepoint Oy, a great shop to stock up on plastic. They have Finnish prices and weird hours (look them up) but they also carry just about any product on the market in a variety of weights, plastics and colors. Support local disc shops!
The park has great baskets and they're easy to spot; the top band is painted a dark orange. There are several practice baskets at the start of the course. The tee signs are easy to spot and show distance, hole number, par info and a good map of the fairway. The course is well designed and some holes are particularly creative. The path of the course describes two loops; the first 12 holes take you in a loop back to the parking lot and then the last six loop around as well. The grass is well maintained here and the local club seems to keep the facility in great condition. There are benches at every tee.
This course is challenging. Bring your best game and your full arsenal. This course features epic distance (longest hole is 216m!) a keyhole mando, lots of OB, an island hole, drop-offs, tons of trees, tight fairways, and just about anything else you could think of to make your round tough. The shots are varied, and there are a couple of ace runs as well. The course also hosts a couple of tournaments it seems and also hosts a leg of the European pro tour.
There are also a few elements here that set the course well above average. One blind hole has a little bike horn to honk by the basket when you've finished the hole so the group behind you knows its safe to throw. Pure genius! Also, the OB lines are marked by stakes made from small diameter pvc pipe pieces stuck in the ground. I've only seen this on Finnish courses but I think it's an aspect that other courses would be smart to adopt as well.
I found the Finns in general to be very friendly wonderful people and their disc golfers are no exception. Most of them speak decent if not excellent English and I played in with a few players here; one of whom I met up with later in the week and another guy gave me a lift back to my hostel. Don't be afraid of the language barrier, they will probably love to talk to you. Also, you can do late twilight rounds here in the summer as the sun won't set until about 11pm around the solstice. It's awesome.
Cons:
I'm not crazy about tees here. They're great on the longer holes but some of the shorter ones use pretty short tees. Some are concrete and some are carpet colored plywood. They could be better.
You do have to watch out for stinging nettles (or as the Finns call them nökkönen). They are very present on this course, both in the rough and on the fairway. Also the mosquitoes here are huge and will eat you alive. Bring bug spray.
While it's great that disc golf is one of the fastest growing rec sports in Finland, it also means that this course gets very crowded. You will also find a lot of unexperienced players who are more into drinking beer than playing so the course can get a bit littered. You may also spend some time waiting to tee off, thank god for those benches right?
The last thing that could be improved on this course is the layout. Some fairways share an OB line, so an errant shot can easily fall on a neighboring fairway. I also think it's nuts to have the 216m hole be the first shot. It is kind of a good thing to get some space between groups at the start of the course. but it's also a little crazy to start a course with such a long hole.
Other Thoughts:
Save your money and take a disc golf vacation to Finland. Playing here is a true joy with such a great course, beautiful setting, long summer days, and friendly locals. Pack some bug spray, watch out for the nökkönen, and have a great round. It's an excellent course all around!