Jurmala is a resort town near Riga on the shore of Baltic Sea. Here is exact location of the conference center. How to get there You can take a train from the central train station of Riga to Jurmala, the destination station Lielupe. You can get to the central train station from the airport of Riga by taking Bus N 22 that stops directly in front of the airport or you can go directly to the Conference center from airoport by taking a taxi.
More detailed directions are available here .
If you find your country in the list of Countries whose citizens may entry Latvia without a visa , then you can don't worry about visa.