Longways for as many as will
Video: http://www.youtube.com/watch?v=hyJCRHvE9NU
Recording: sun_assembly--043.mp3.zip
sun_assembly-vemh-16.mp3.zip

   A     8  Hands four half-way; and fall back with corner
         8  "Gate": (First couple leads up one place and casts back, assisted
            by second couple)
         8  First couple half a figure-eight up through second and back to 
            second place, as second couple cross up on last 4 beats
         8  Set and turn single
   B     8  First couple right hands across with couple _below_
         8  First couple left hands across with original second couple
         8  First couple lead down through next couple and cast back to place
         8  Turn partner, both hands.

See an [https://www.upadouble.info/dance.php?id=SunAssembly&sort1=publication|animation of this dance]].