The marmot burrow in the new playground also serves as the starting point for the Fruttli Trail, a learning and adventure trail with ten stations around Lake Melch designed to spark children's curiosity about the marmot. Here they can learn new things about Fruttli and devote themselves entirely to the playgrounds and their attractions. As a further incentive, they can solve tasks for the marmot, which earns them a reward at the finish.