This cache is a part of The Marathon Of Mysteries.
Sai Wan Ho Civic Centre is a community arts centre maintained by the Leisure and Cultural Services Department. The Centre has offered a variety of facilities for music performances and community arts activities since its opening.
The published location is not the actual cache hiding place. You need to solve the puzzle to work out the mid-stage where it will guide you the way to fetch the final gem.
A domino is a small tile that represents the roll of two dice. The tile, commonly called a bone, is rectangular with a line down the center. Each end of the tile contains a number. In the most popular domino set, the double-six, the numbers vary from 0 (or blank) to 6. This produces 28 unique tiles, as shown in the diagram below.
Given a puzzle where 28 dominoes are placed to form a rectangle but you don’t see their bounds. Your goal is to find these bounds. Group the pairs of domino halves to restore the whole domino set.
Mid-stage location emerge after solving the puzzle:
N 22° 1A.BC9
E 114° 1D.EF2
Come here and conduct a orchestra performance.
After the performance, please stand in-front of the music stand and there are 12 bars of information. Each of the information equivalent to a number. By matching first 2 characters of the information with the formula listed below, it will bring you to the final location:
Northing: add .0[FO][TA]
Easting: minus .0[TA][PA]