Where: John Prince Park, in Lake Worth, FL. 6th avenue entrance, between Congress and I-95. First parking lot on the left.
When: Sundays, noonish. Till dusk or rain or people no longer feel like it.

Map of area - from maps.yahoo, location is about where the "M" in Memorial Park is shown.

Specific driving directions:
Starting point Directions
Shining South Take I-95 north
Take exit 6th avenue exit in Lake Worth, head west
Enter John Prince Park on left, about 1 mile.
We're adjacent to first parking lot on left, next to park HQ.
Darkwater East
Bloodstone
Dragon's Keep
Crystal Falls
Head south on I-75.
Take Florida Turnpike South
Exit (Ft. Pierce), take SR 70 East.
Take I-95 South
Take 6th avenue exit in Lake Worth, head west
Enter John Prince Park on left, about 1 mile.
We're adjacent to first parking lot on left, next to park HQ.
Falling Fire
Stormhafn
Take SR 60 East to Florida's Turnpike.
Take Florida Turnpike South
Exit (Ft. Pierce), take SR 70 East.
Take I-95 South
Take 6th avenue exit in Lake Worth, head west
Enter John Prince Park on left, about 1 mile.
We're adjacent to first parking lot on left, next to park HQ.
Lost Woods
Emerald Coast
All other amtgard kingdoms except Goldenvale
Head east on I-10. Head south on I-75.
Take Florida Turnpike South
Exit (Ft. Pierce), take SR 70 East.
Take I-95 South
Take 6th avenue exit in Lake Worth, head west
Enter John Prince Park on left, about 1 mile.
We're adjacent to first parking lot on left, next to park HQ.
Burning Waters
Kingdom of Goldenvale
Head south on I-95.
Take 6th avenue exit in Lake Worth, head west
Enter John Prince Park on left, about 1 mile.
We're adjacent to first parking lot on left, next to park HQ.
Ft. Myers area
Jesus Castro
Head west on SR-80.
Head south on Congress Avenue in West Palm Beach (opposite airport)
Head east on 6th Avenue (just past Palm Beach Community College). Enter John Prince Park on right, about ¼ mile.
We're adjacent to first parking lot on left, next to park HQ.
Expensive method
for anyone using
Turnpike on above
Instead of exiting Turnpike on SR70 east, stay on Turnpike until exit on Lake Worth Road in Lake Worth.
Head east on Lake Worth Road until Congress Avenue
Head south on Congress one block until 6th avenue
Head east on 6th Avenue (just past Palm Beach Community College). Enter John Prince Park on right, about ¼ mile.
We're adjacent to first parking lot on left, next to park HQ.
This route will cost about $4.00 more in turnpike fees in a 2 axle vehicle, but is faster.