Help the Dolphin Find the Coral Reef — Level 3

Fifty-five changes of direction across 75 squares: this route almost never runs straight, and that is what makes it hard rather than its length. A child who is comfortable on a long, open level 3 sheet can still come unstuck here.

Twelve cells across brings the corridors down to about one and a third centimeters. At that width the pencil work is genuinely part of the difficulty, so these sheets suit a child who has already stopped needing to rest their whole hand on the page to draw a straight line.

The way through runs 75 squares and turns 55 times, with 17 dead ends branching off it. The grid is carved so that exactly one route connects the start to the finish: no loops, no second way round, and no corner walled off from the rest. Every square can be reached, and a child who follows the route carefully will always get there.