sail-world.com
 
 
News Home Cruising Australia Cruising USA Cruising Canada Boats for Sale Sail-World Racing Photo Gallery FishingBoating
Video Gallery Newsletters
Sail-World.com : RYA's six hot tips for 'Creek Crawling':
RYA's six hot tips for 'Creek Crawling':

'Creek Crawling preview'    .

On your sailing boat do you feel more comfortable out in the ocean than in shallow waterways or rivers? Yet 'creek crawling' can be the most rewarding of adventures for the cruising sailor. The upper reaches of a river often go unexplored but usually offer stunning scenery and interesting places to moor.

Britain's Royal Yachting Associaiton (RYA) has come up with six vital tips to help you to navigate your next interesting creek or river.

Creek crawling 1 -  .. .  
1. Deep water
The deeper water usually flows near the outside of the bend. Keep this natural phenomena in mind when the buoyage starts to thin out. Often a sand bank or shallow patch on the inside of the bend is ready to catch the unwary or those thinking of taking a shortcut (Fig A).

2. Pick a side
When the buoyage becomes sparse, instead of looking for the middle of a channel, find and edge and stick to it (Fig B). If you are in the middle of a channel and suddenly lose depth there is no way of knowing where deep water is located. If however the echo sounder is used to locate one side of the channel when the depth reduces you will know which way to turn.

In the illustration (Fig C) we have chosen the starboard side of the channel. By following a constant depth on the echo sounder it will lead us around the river. If the depth reduces we turn to port and if it increases we turn to starboard.

Creek-crawling-2 -  .. .  
3. Tidal Heights
Tidal height dramatically changes what you see, compared to the charted view. A channel may look straight forward on the chart because it gives the view you’d get at the lowest low water. But a rising tide covering the banks makes the obvious channel disappear; leaving just a scattering of marks, so if in doubt note the bearing and distance to the next mark on a plan to indicates which way to go.

Most rivers get shallower as you travel upstream and require you to establish the tidal height to give you safe clearance. Remember the depths on the chart give the lowest depth expected and any predicted tidal height is added to it. Therefore if there is a depth of 2m on the chart and there is a tidal height of 3.7m, the actual expected depth would be 2m + 3.7m + 5.7m. Heights for many ports are available on the internet or the actual rise of tide can be calculated using information found in an almanac.

To work out a height:

When will we have 3.7m of tide?

(1) Enter HW time and fill in the boxes for each hour before and after HW (1301 UT)

(2) & (3) Mark in the heights of today’s HW and LW, draw a line between them

(4)Find 3.7m on the HW Hts scale.

(5)Draw a line downwards to intersect today’s HW/LW line, across to meet the curve and then down to the time scale.

(6)There will be 3.7m from about 1010 until 1540 UT

Creek-crawling-3 -  .. .  
4. Clearance
Allow sufficient clearance under the boat. If you have a keel and the propellers and rudder are protected, the clearance may be less than if the props and rudder would be the first to touch. The required clearance may also be affected if the bottom is hard rock or soft mud and whether the tide is rising tide or falling as greater margins are prudent with rocks and on falling tides. Proceed slowly and watch the echosounder. A look behind the boat will often indicate whether you are starting to get shallow as the wash from the props will start churning up mud or sandy coloured water.

5. Make a plan
Keep the all- important chart down below to stop it blowing away and instead draw a plan. Drawing a plan allows you to start building a mental picture of where you going as one bend in a river is often similar to another. Keep track of your position by crossing off key points and buoys as you go.

6. Taking the heat
Shallow water increases the chance of weed, sand and mud making its way into your engine seawater filter. Check the filters afterwards and keep an eye on your engine temperature during the trip.
.............

About the Royal Yachting Association:
The Royal Yachting Association (RYA), is the national body for all forms of boating, including dinghy and yacht racing, motor and sail cruising, RIBs and sports boats, powerboat racing, windsurfing, inland cruising and narrowboats, and personal watercraft. To learn more about the RYA go to http://www.rya.org.uk/


by Royal Yachting Assocation/Sail-World


  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=121972

9:11 PM Thu 8 May 2014GMT


Click here for printer friendly version
Click here to send us feedback or comments about this story.







Sail-World Cruising News - local and the World



Where in the world are our strongest corals? by Hanny Rivera - Cohen's Lab,


Test title of the story by Yasir Shaukat, Lahore
Demo website... [more]  














Barnacle Busting by Neil and Ley Langford,


From Penguins to Polar Bears by Cherie Winner,








NCI granted dedicated VHF Channel by National Coastwatch,


Positive news for cruising boats in Greece by The Cruising Association,
























Risks to penguin populations continues by British Antarctic Survey,




Follow these tips when anchoring by Alex and Daria Blackwell,






Galley Guys meet the Spice Lady by Greg Nicoll, Andy Adams and John Armstrong,


North American Rally to the Caribbean - Get prepared to head south
If all else fails read the instructions!!
ARC Baltic fleet cruising and anchoring in the Finnish archipelago
Phuket Yacht Show: new kid on the block taking on PIMEX? *Feature
Sea and Summit leg seven - Rain fails to dampen Tash's spirits
RYA meets with Government over latest red diesel development
Endangered species are like Movie Stars - Charlie Sheens and Tom Hanks
Halong becomes a Super Typhoon; Japan in harm's way
Vanuatu Customs making life easier for visiting cruising yachts
Baltic 4 Nations rally is now in full swing
Tropical Storm Bertha expected to become a typhoon
Flags at Sea, an infographic by John Tissott
Cruising lessons from ocean racers
Procedures set out for waterborne visitors to Vanuatu
17-year-old RNLI volunteer saves child in first rescue mission + Video
Teen names latest RNLI Shannon class lifeboat in Poole + Video
RYA Sea Survival Handbook – 2nd edition now available
Fascinating opportunity with OceansWatch
Lobster Thermidor - Making Julia proud
Fake GPS signals detected when cruising the high seas
Our new Cruising Editor editor remembers his first offshore adventure   
World Odyssey Race - Bringing back the Corinthian spirit   
Blue Planet Odyssey - Jimmy Cornell playing catch up on North West Pa   
Blue Planet Odyssey Rally - Raising climate change awareness   
All Points Rally departs this November   
World ARC 2014 reaches Australia   
Venezuelan Port Control lift recent port restrictions.   
Seismic survey ship operating north of Aruba and Curacao   
A Mooring in Iceberg Alley   
Boaters urged to speak up on 15%ethanol proposal   
Predictwind helps you pick the best time to depart   
IMB reports worrying trend of piracy hijacks in Southeast Asia   
Watch this whale lift a Kayak clear out of the water   
World ARC reaches half-way point in Australia   
Northern Scotland: Voyage to Orkney and Shetland Isles (Part 2) *Feature   
Vietnam Marina Development: ONE°15 Vung Ro Bay Marina Resort   
Drowning or electric shock? What you need to know to help save a life   
Costa Concordia - the $2.25 billion salvage operation ready to begin   
Northern Scotland: Voyage to Orkney and Shetland Isles, more photos *Feature   
Fort Lauderdale International Boat Show - New location and attractions   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph, contact the photographer directly.
XLXL WAS CRU NH
LocalAds   DE  ES  FR  IT