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Dive 21 · Kelp Forest

Harbour seal in the kelp

A spotted harbour seal swimming between kelp stalks, looking towards the viewer

Filling the tank…

In the frame

A spotted grey harbour seal swims between kelp stalks and looks straight at the viewer. Golden kelp leaves frame the right side; the water behind is a soft green haze.

This dive cuts the picture into 24 pieces on a 6 × 4 grid: 16 border pieces and 8 inner pieces. The cut is fixed, so every player gets exactly the same pieces.

Dive plan

  1. Start with the easy part: the seal's spotted face and the golden kelp on the right.
  2. Save for last: the soft green water in the background. About 14% of the frame has little detail, mostly in the bottom third, and those pieces look alike.
  3. Switch on Edges to keep only the 16 border pieces on the table, and build the frame first.
  4. Press Sort to tidy the loose pieces into rows around the board, border pieces nearest — handy once the frame is done.
  5. With this much detail you can build small islands around single features and join them to the frame later.
  6. At this size most pieces show something recognisable — a good dive for a few relaxed minutes.

Colours of the picture

Main colours, measured from the picture's pixels: charcoal (39%), sea green (39%), brown (13%) and kelp green (9%).

  • charcoal39%
  • sea green39%
  • brown13%
  • kelp green9%

How deep it goes

Depth 1 of 5 — a calm paddle.

Snorkel dives are the shallow end of the logbook: small boards with pieces big enough to read at a glance.