kardla meteor crater

Well now. I'd love to have seen the Kardla Crater, it's really my kind of thing. We checked it out online, took a note of the map position and set out along the road from Kardla towards the airport, keeping an eye out for the signs. 15km later we turned back, figuring we must have missed it. Still no sign of any signs. We tried a few possible turn-offs, which resulted in some pretty hairy cross-country driving, but still no luck. We ended up back in the supermarket in Kardla, where we asked directions. (Bear in mind that I was travelling with two Estonians, both of whom have spent a lot of time on Hiiumaa.) The nice lady in Selver told us that we'd tried every turn-off except the right one, but that the aforementioned sign was a little way down the side road. Back we went, took the turn-off she suggested, and drove right past the sign - not hard to do, since it's buried in the undergrowth and almost invisible from the road. The sign had a satellite map, which was marked with 14 or so numbers, which would have been really useful had there been any explanation of what the numbers were or how to get to them. We drove around a bit more, but we still couldn't find the viewing platform I'd seen mentioned online. We then drove back towards the airport, in fact all the way to the airport, but by now even I had had enough and so we went home. I figured I must have misremembered what I'd seen online, so when we got home I checked it again, but no, we'd been exactly where the website said we should have been. I'd still love to see the Kardla Crater but I'm afraid I've run out of ideas on how to find it - if anyone has any more luck I'd love to hear about it!