{{explanation}}
Square set, 5s in centre facing 1s

1-8
: 5s dance RSh alternating tandem("dolphin") reel with 1s+3s in promenade
  hold (5s pass 1s RSh to start)
9-16
: 5s dance LSh alternating tandem("dolphin") reel with 4s+2s in prom hold,
  passing 4s LSh to start, 5s finish facing up in middle.
17-20
: 5L+2s dance RH across as 5M+4s dance LH across, 5 finish facing each
  other in middle
21-24
: 5s set and turn RH into promenade hold facing up
25-32
: All take ptnrs in prom hold, 5s change pl with 1s RSh, 1s pass 4s RSh,
  4s pass 3s RSh, 3s pass 2s RSh & 2s end in centre facing 5s