Smaller than a Sulcata, cleverer than it looks
A Hermann's tortoise will not bulldoze a fence down, but it escapes with persistence and surprising climbing skill. Given a textured corner, stacked stones, or a plant growing against the wall, a Hermann's will wedge itself upward, scramble with all four legs, and topple over the top — usually landing unhurt and walking steadily away. It also digs with intent, especially along fence lines and under shelters. Escape-proofing means removing both techniques rather than reacting to each attempt.
Choose smooth, solid walls tall enough that the tortoise cannot reach the rim when standing against them — and judge that height with the tortoise reared up on its hind legs against the wall, not standing flat. Opaque walls also calm the animal: a tortoise that cannot see the garden beyond its pen spends far less of the day pacing and testing the boundary.
Corners, climbs, and the ladder problem
Corners are the ladder. Where two walls meet at a right angle, a tortoise can brace its shell and climb the seam, so cap corners with a smooth overhanging lip, round them, or fit triangular corner covers that remove the brace point. Keep every climbable object — rocks, logs, planters, even a water dish — well away from the walls, because a tortoise that can step up half the wall height only needs to climb the other half. Check after you rearrange the pen, since owners most often build the escape staircase themselves while adding enrichment.
A lip or overhang running along the top of the wall, angled inward, defeats the final heave over the rim even if the tortoise reaches it. Combined with smooth walls, it makes climbing unrewarding enough that most animals stop trying.
Digging down and the buried barrier
Along the base, bury the wall material below ground level or lay a horizontal barrier of sturdy mesh or solid edging under the soil running inward from the fence, so a tortoise digging at the boundary meets resistance and turns back into the pen. Inspect the line weekly and after heavy rain, when softened soil lets a determined animal excavate in a single afternoon what would normally take a week. Pay special attention to the soil under the shelter and gate, the two places digging concentrates.
Also give the tortoise a legitimate place to dig and shelter — a soil mound, a dry hide with deep substrate — inside the pen and away from the fence. A Hermann's with its own burrow spot works the boundary far less.
A top that keeps other animals out
Outdoor security runs both ways. A framed, firmly fixed mesh top over the pen protects a Hermann's from dogs, foxes, and birds, all of which can injure or carry off a tortoise of this size, and it also stops the tortoise exploiting any wall weakness unnoticed. The frame must latch or weigh down positively at the edges — a loose sheet of mesh lifted by a dog is no protection at all. Indoors, a tortoise table needs the same thinking at smaller scale: smooth deep sides, no climbable corner furniture, and no access for household dogs to an open top.
Gates, weather checks, and identification
Fit gates and pen doors with latches that cannot be nudged by a dog or left half-caught by a child, and make a habit of a slow perimeter walk: walls, corners, base line, gate. Tortoises wander far and then dig into leaf litter and become nearly invisible, so photograph your Hermann's shell pattern from directly above — the scute markings identify it reliably — and note its size. If the perimeter ever fails, search low cover and sunny edges nearby the same day, and KinsLe can widen the call through its Lost Pet Alert System.