-
- From column formation: Center four do a Partner Tag and then step forward to do a Partner Trade. Meanwhile the ends single file Circulate and keep moving up into box formation (with each other). Those in the box (in the "Tunnel") then turn a quarter in or out as directed. Tunnel In finishes in double pass thru formation. Tunnel Out finishes in eight chain thru formation.
NOTE: Other follow-up calls could be used in addition to In/Out.
Similarly, just Tunnel alone could be called which finishes with the box formation between facing couples.
- Lee Kopman 1976
