Waterwitch 30 Mk II Information, Review, Specs

Make
Waterwitch
Model
30 Mk II
Builder
Various - mostly amateur built
Designer
Maurice Griffiths
Number Built
Production Year(s)
1959 - ??

The Waterwitch 30 Mk II is a quintessential example of the "East Coast" cruising philosophy championed by its designer, the legendary Maurice Griffiths. Developed as a larger, more offshore-capable evolution of the original 26-foot Waterwitch, the 30 Mk II was specifically engineered for the shallow estuaries and drying harbors of the United Kingdom and Northern Europe. Primarily constructed in steel—though several examples exist in wood and a rare few in GRP—the Mk II version refined the original’s chined hull form to improve aesthetics and interior volume. According to the Eventide Owners Group, the design remains a hallmark of Griffiths' commitment to shallow-draft, stable, and sea-kindly vessels that can "take the ground" comfortably.

While the Waterwitch 30 Mk II is the primary focus, it is part of a broader lineage of chined cruisers. Its siblings include the smaller 26-foot Waterwitch and the larger 35-foot Atlantic Waterwitch. The Mk II is distinguished from the Mk I primarily by its revised coachroof profile, which offers increased standing headroom and a more balanced sail plan.

Sailing Performance & Handling

The Waterwitch 30 Mk II is not a yacht designed for light-wind racing; it is a heavy-displacement cruiser that prioritizes stability and tracking over raw speed. Its chined hull and long keel (often fitted with bilge plates or a triple-keel configuration) provide a stiff, upright sailing experience. The Displacement/Length ratio is high, meaning the boat carries significant momentum through a chop, a characteristic often praised by owners for reducing fatigue during long coastal passages.

Under sail, the Mk II typically features a ketch or a cutter-headed sloop rig. The ketch rig is particularly favored for short-handed sailing, as it allows the crew to "sail on the jib and mizzen" when the wind picks up, keeping the boat balanced without the need for aggressive reefing. Handling is predictable, though the long keel and shallow draft do make for a larger turning circle and some difficulty when reversing under power in tight marinas. In "The Magic of the Swatchways," Griffiths’ design ethos is described as prioritizing the ability to navigate where deeper yachts cannot, and the Waterwitch 30 Mk II embodies this, comfortably navigating tidal guts and mudflats where it can sit upright on its flat bottom or bilge plates.

Interior Comfort & Variations

The transition from the Mk I to the Mk II brought significant improvements to the interior living space. By raising the coachroof and refining the hull’s beam, Griffiths achieved a layout that feels remarkably spacious for a 30-foot vessel. Most Mk II models feature a traditional five-berth arrangement: a double V-berth in the forward cabin, a convertible dinette in the saloon, and a dedicated pilot berth or quarter berth.

Materials used in the interior are typically heavy on hardwoods like teak or mahogany, often reflecting the era of owner-completion, as many of these boats were sold as steel hulls or kits. Because steel construction can be prone to condensation, high-quality Mk II builds often feature extensive insulation behind the cabinetry. The galley is usually located to the port side of the companionway, providing a secure spot for cooking at sea, while the chart table is substantial—a nod to the boat's heritage as a serious navigational platform before the advent of modern electronics.

The Waterwitch series is intrinsically linked to the literary legacy of Maurice Griffiths, the long-time editor of Yachting Monthly. While the 30 Mk II itself is featured in technical design retrospects within the magazine’s archives, its greatest "media" presence is through the Eventide Owners Group, which maintains the original plans and historical records for the design. The vessel is frequently cited in classic boat literature as a prime example of the "shoal draught" movement that transformed post-war British yachting.

Known Issues & Buyer’s Checklist

Prospective buyers of a Waterwitch 30 Mk II must prioritize the structural integrity of the hull above all else. Because the majority are steel, the following areas require meticulous inspection:

  • Internal Corrosion: Corrosion often starts from the inside out. Inspect the bilges under the engine and the chain locker, where standing water or salt can sit against the steel plating.
  • The "Griffiths" Skerry: Ensure the welds around the bilge plates or triple keels are sound. These areas experience significant stress when the boat takes the ground regularly.
  • Deck-to-Hull Join: In steel models, look for "bleeding" or rust streaks at the deck-to-hull join, which can indicate failing sealant or localized pitting.
  • Insulation Integrity: Check for "sweating" behind the furniture. If the original insulation has degraded or was poorly installed, it can lead to hidden corrosion on the interior of the hull plating.
  • Engine Accessibility: Many Mk IIs were fitted with older Thorneycroft or Perkins engines. Verify the state of the engine beds and ensure there is adequate access for maintenance, as some owner-finished interiors can be cramped around the machinery.

Community & Resources

The definitive resource for this model is the Eventide Owners Group. This association is one of the most active for classic designs, offering technical support, a registry of known boats, and access to original design specifications. They also host "meets" specifically for Griffiths-designed boats, providing a valuable network for sourcing parts or advice on steel hull maintenance.

The Verdict

The Waterwitch 30 Mk II is a rugged, character-filled cruiser for the sailor who values tradition and the ability to explore shallow waters over modern performance metrics.

Pros:

  • Exceptional Stability: A stiff, safe platform that handles heavy weather with ease.
  • Shallow Draft: Ideal for exploring estuaries and drying out in tidal harbors.
  • Traditional Aesthetics: A classic look that commands respect in any marina or anchorage.
  • Strong Community: Backed by a dedicated and knowledgeable owners' association.

Cons:

  • Maintenance Intensive: Steel hulls require constant vigilance against corrosion and regular painting.
  • Slow in Light Air: The heavy displacement and chined hull struggle in light wind conditions.
  • Variable Build Quality: As many were home-finished, the quality of the interior and systems can vary wildly between individual boats.

Measurements

Construction & Hull

Construction Material
Steel
Hull Type
Monohull Sailboat
Keel Type
Twin
Rudder
1x —
Ballast
2000 lbs
Displacement
9500 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
30 ft
Waterline Length (LWL)
26 ft
Beam
8.5 ft
Draft
2.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Ketch
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
-

Calculations

Sail Area / Displacement (SA/D) Ratio
Ballast / Displacement Ratio
21.05
Displacement / Length Ratio (D/L) Ratio
241.3
Comfort Ratio
31.2
Capsize Screening Formula
1.61
Hull Speed
6.83 kn