Sicurezza nell'attraversamento del fiume per piste e campi della Nuova Zelanda

Valutare prima di entrare

Controlla le previsioni, la pioggia recente e i consigli sul percorso prima della partenza. Cerca acqua in aumento o scolorita, detriti in movimento, una forte corrente e nessuna uscita sicura.

Se il fiume è in piena, aspetta o torna indietro. Non entrate per testare la profondità e non attraversate mai solo perché è partito un altro gruppo.

Usa le competenze in modo onesto

Le abilità di attraversamento del fiume richiedono istruzioni pratiche e un buon giudizio di gruppo. Slacciare le cinghie dello zaino laddove consigliato da una guida esperta ed evitare di collegarsi in modi non praticati dal gruppo.

Scegli i ponti o le alternative contrassegnate quando disponibili. Un percorso più lungo è quello corretto quando il guado è dubbio.

Anche i guadi dei veicoli sono pericolosi

Conoscere i limiti di guado stabiliti dal produttore e lo stato di chiusura dell'autorità stradale. L'acqua può nascondere i dilavamenti e spingere lateralmente un veicolo a una profondità sorprendentemente bassa.

Non aggirare mai una barriera anti-inondazioni. Parcheggiare ben indietro, attendere la riapertura ufficiale e conservare cibo e carburante sufficienti per il ritardo.

River crossings kill trampers here every year

New Zealand rivers rise fast, run cold and carry more force than they appear to. Drowning during crossings has historically been common enough to be described as the New Zealand death, and almost all of it involves people who decided to cross when they should have waited.

The decision is the skill. Turning back or waiting is always available and always safe; the crossing is not. If there is any doubt, there is no doubt.

Reading whether it is crossable

Look for a wide, straight, shallow reach with an even bed and a safe run-out below rather than rapids, logjams or a deep pool. Discoloured water, debris moving downstream, a rumbling sound of boulders and water above knee height on the shortest party member are all reasons not to cross.

Never cross where you cannot see the bottom, and never immediately above a hazard. Rivers change with every flood, so a crossing point described in an old guide may no longer exist.

If you do cross

Undo the waist belt and chest strap on your pack so it can be shed, keep boots on for grip, and face upstream slightly while moving across and downstream at an angle. Move one foot at a time and keep both feet planted before shifting weight.

Cross as a linked group where possible, with the strongest members on the upstream and downstream ends, and move together. If someone is swept away, they should go feet first on their back and swim for the bank at an angle rather than fighting the current.

Wait it out

Most New Zealand rivers drop as quickly as they rise, frequently within hours of the rain stopping. Carrying an extra day of food turns a dangerous decision into an inconvenient wait, which is why the standard advice is to plan for one.

Tell someone your intentions before you go so an overdue party triggers a response, and carry a personal locator beacon on any route with crossings. Both are cheap compared with the alternative.

Alternatives to crossing

Check whether a bridge exists upstream or downstream before committing, because many tracks have one within a reasonable distance and the detour is almost always shorter than the consequences of getting a crossing wrong.

Many New Zealand backcountry routes are unbridged by design, and the route description usually says whether crossings are expected. Where it does, treat that as a requirement for the skills and the willingness to wait rather than as a passing note.

Waiting is the most underused option available. Most rivers here drop within hours of the rain stopping, and carrying an extra day of food converts a dangerous decision into an inconvenient afternoon.

Learning before you need it

River crossing is a taught skill and reading about it is not the same as having practised. Outdoor clubs, guiding companies and some DOC visitor centres run or can point you towards training, and it is worth doing before a trip with crossings on it.

If nobody in the party has crossed a river before, choose a route that does not require it. There are plenty of excellent multi-day walks in New Zealand with bridged crossings throughout.

Luoghi lungo il percorso