ISWC's workshops start at 9am Sunday and the registration desk opens at 7am. Both will be at Rauch Business Center on Lehigh University's campus.
The new Getting around Bethlehem page explains how to get to the Rauch Business Center from the hotels, as well as some tips for how to travel about town in general. Of special note is that on each conference day, Lehigh University will provide free buses to the conference venue from the four conference hotels. You can find information on the buses and their schedules here. Sunday's buses start at 6:30am and run to 7:30pm.