Whistles
Canyons can be really loud when there's a waterfall crashing down next to you, so communication can be seriously compromised. A good quality whistle / Survival Flute that can be heard over the roar of a waterfall or where you have a really long abseil and can't hear each other properly can help with communications.
Whistles for outdoor use are piercingly loud. Avoid the use of whistles with moving parts as they can clog and jam up when soaking wet.
As there are a number of different variations and interpretations of whistle signals and communications in general, you should confirm communications to used prior to starting your canyoning trip.
Suggested Whistle Signals based on Grant Prattley's Canyoning Technical Manual:
1 blast = Stop
2 blasts = OK
3 blasts = Down
4 blasts = Up
Continuous = Help
If you can see each other then hand signals are a good alternative and you can always combine hand and whistle signals.
ACME Slimline Tornado 636ACME SLIMLINE TORNADO 636 Slimline, small and flat, loud and high pitched. The little whistle with a big punch.
Weight: 5 gr.
Color: Orange.€ 4,50
Acme Tornado T2000ACME TORNADO T2000 Ultra high pitch, very loud, big whistle in every sense, 125dBA
Weight: 7 g
Color: Oranje€ 7,50
CZ Whistle simpleCZ - WHISTLE SIMPLE Double shrill tone - Plastic whistle with clip to attach to a backpack, helmet or wet-/cavingsuit. Also, there may be a cord threaded through 2mm. The whistle is perfect for use in water and muddy environment.…
€ 3,50
Fox40 Classic WhistleFOX40 CLASSIC WHISTLE Classic Whistle, This is the one that changed the game! Standard choice for personal safety and rescue professionals worldwide.
Authentic. Original. Fox 40`s first pealess whistle. The harder you blow, the…€ 7,95 € 6,95
Korda`s Silbato (Whistle)KORDA`S SILBATO (WHISTLE) A whistle so that no metal making it ideal for water sports in a striking orange.
2mm cord comes with it to attach to your helmet for example, to get rid of if not.Weight: 25 g€ 4,99
Rodcle Silbato / WhistleRODCLE SILBATO / WHISTLE A whistle without any metal parts, which makes it ideal for water sports.
It is a sound emitting signals for communication in cases where there is no direct view or if no other communication is possible…€ 5,75 € 4,59
Rodcle Silbato VI / WhistleRODCLE SILBATO VI / WHISTLE A whistle without metal parts, making it ideal for water sports.
It is a sound emitting signals for communication in cases where there is no direct view or if no other communication is possible due to…€ 4,99
