Twelve named beaches. Each one calculated by the same formula — kilometres × kilos-per-kilometre → tonnes → dPRN value → meals funded → volunteer hours → CO₂ saved. Each one with a PRESS HERE spoken brief that runs 2-3 minutes via your browser. UK first, then global. Pebbles, sand, dunes, fishing-gear hotspots. Different palettes per beach. Same ledger. Same receipt. Same maths.
Every beach below is sized using the same deterministic formula. The two inputs we measure on the ground are the beach length in kilometres and the plastic load in kilograms per kilometre (a sovereign survey band based on field counts). From those two inputs, all five downstream metrics are calculated automatically and identically — there is no hand-tuning per beach. This is what makes the figures comparable, auditable, and ledger-ready.
Each Sovereign Beach inherits the existing ecosystem: /beach-hub hosts the master beach registry · /bin-hub tracks deployed bins around each beach · /vmr monetises the meals fed from each pass · /carrot-watcher chases the operator reimbursement · /velocity-tracker seals each completed pass into the OP ledger · MD-462 H.BLUE Route Optimisation sequences the multi-beach itinerary.