Thread: Navionics chart card on southern lakes

Hi, can anybody tell me if navionics platinum plus cards show contours for lakes Te Anau, Manapouri, Monowai, Hauroko etc?

Cheers

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As far as I'm aware (the great preface here) the only charted lakes with LINZ charts are Taupo and Whakatipu. So unless there's an unofficial data set that they've used likely you will only have the generic basic contour plotting available with the card. This is my experience from a few years back and with covid in the interim I can't see it changing...

Can't answer the question right now, but if you really want to know, you could buy the Navionics Boating app ($99) and the data content will be the same. You can use your phone as a chart plotter. It's not ideal, but it works.

I've just looked at those lakes on C-Map and the data isn't there, but is there for the larger northern lakes.

Yeah, that's the generic base contours - things like lake floor info and individual obstructions won't be part of it. It's enough to get you from a - b and back and with a bit of local knowledge you are good to go but as an example the base contours on one point in Lake Rotoehu had you in 3m of water before the lake level came right up - but in reality there was a little bar coming out off the point and it was only about 0.5m for a few meters wide. If you kept wide away from the edges you'd be fine, but if you were not careful it would be a sudden stop.

No they don't, our Simrad has one of those cards in it (not sure why as boat has lived on Te Anau its whole life and old owner installed Simrad new) and it doesn't show contour lines etc. Not to difficult to figure out the drop offs etc if you're wanting it for fishing?

A side note to all using SD card maps in your sounder/GPS, back them up to a computer.
I learnt the hard way that an SD card can fail.

Yep, that's a thing. Pain in the bum too!