There's several ways:
- Epcot - monorail to TTC, monorail to MK, boat to WL
- Epcot - monorail to TTC, bus to WL
- Epcot - bus to WL
- If you're in WS, walk to BC - bus to MK, boat to WL
Easiest would be to bus to WL. I'd say give about 20-30minutes travel time (not included waiting for the bus time)