Minato-Mirai Line (change from Tokyu Toyoko Line, or JR Yokohama Eki), Take to Motomachi Sta., exit 5. If you get out of any exit other than exit 5, you will get confused easily. In that case, walk around Motomachi until you find exit 5 (at the end of Motomachi)
Leave the station and turn right. Walk up the street past the park, and as you turn the corner you will see Don Kihote on right. Walk to the second light, cross the bridge and you will come out a street under the highway. Cross the street, and walk straight. You will see a parking lot for Tycoon, and Yokohama Bay hall. Walk straight, and you will pass a bus depot. As you come to the end of the street, it will turn to the right. Look for the large SAIL with christmas lights.
If you are coming by car, please park your car in the the parking lot marked 'AUTO PARK' on the map. Parking for 10 hours is roughly 2000 yen.