GRAND TANG HARBOUR marine chart is included in Gulf of St. Lawrence South nautical charts folio. It is available as part of iBoating : Canada Marine & Fishing App (now supported on multiple platforms including Android, iPhone/iPad, MacBook, and Windows(tablet and phone)/PC based chartplotter. ).  

 When you purchase our Nautical Charts App,  you get all the great marine chart app features like fishing spots, along with GRAND TANG HARBOUR marine chart. The Marine Navigation App provides advanced features of a Marine Chartplotter including adjusting water level offset and custom depth shading. Fishing spots and depth contours layers are available in most Lake maps. Nautical navigation features include advanced instrumentation to gather wind speed direction, water temperature, water depth, and accurate GPS with AIS receivers(using NMEA over TCP/UDP). Autopilot support can be enabled during ‘Goto WayPoint’ and ‘Route Assistance’.


Have more questions about the Nautical Chart App? Ask us.



Min Longitude-61.06
Min Latitude46.54
Max Longitude-61.04
Max Latitude46.56
Edition Label 1
Edition Label 2
Edition Label 3
* some Stats may include nearby/connecting waterbodies
Nearby Tide Station LA POINTE
Distance from center: 3 km
Weekly High / Low Tide Table
12/07Wed02:23 AM27.575L cm
12/07Wed09:27 AM86.513H cm
12/07Wed01:16 PM77.613L cm
12/07Wed07:24 PM109.375H cm
12/08Thu03:08 AM23.974L cm
12/08Thu10:21 AM84.635H cm
12/08Thu01:41 PM78.993L cm
12/08Thu07:57 PM112.098H cm
12/09Fri03:51 AM22.791L cm
12/09Fri11:15 AM82.49H cm
12/09Fri02:04 PM79.26L cm
12/09Fri08:30 PM113.222H cm
12/10Sat04:31 AM23.668L cm
12/10Sat12:08 PM80.394H cm
12/10Sat02:26 PM78.797L cm
12/10Sat09:03 PM112.813H cm
12/11Sun05:09 AM26.089L cm
12/11Sun01:01 PM78.634H cm
12/11Sun02:49 PM77.954L cm
12/11Sun09:36 PM111.085H cm
12/12Mon05:45 AM29.513L cm
12/12Mon01:50 PM77.4H cm
12/12Mon03:22 PM77.028L cm
12/12Mon10:09 PM108.255H cm

Marine Wind Meteogram for Lake/Chart

For real time, interactive Marine Wind prediction, download App
Date/TimeSpeed *Dir *
12/08 Thu 06:00PM9.03319.88
12/08 Thu 09:00PM8.92311.6
12/09 Fri 12:00AM10.49310.63
12/09 Fri 03:00AM8.89309.58
12/09 Fri 06:00AM7.48295.34
12/09 Fri 09:00AM7.2293.34
12/09 Fri 12:00PM5.97284.71
12/09 Fri 03:00PM4.82277.7
12/09 Fri 06:00PM2.98262.84
12/09 Fri 09:00PM2.91223.25
12/10 Sat 12:00AM3.53217.43
12/10 Sat 03:00AM4.22208.03
12/10 Sat 06:00AM5.38187.47
12/10 Sat 09:00AM8.19191.25
12/10 Sat 12:00PM8.52191.2
12/10 Sat 03:00PM8.73189.19
12/10 Sat 06:00PM8.68184.58
12/10 Sat 09:00PM8.12183.81
12/11 Sun 12:00AM7.98184.55
12/11 Sun 03:00AM7.44182.67
12/11 Sun 06:00AM7.31178.86
12/11 Sun 09:00AM7.19175.29
12/11 Sun 12:00PM7.3170.29
12/11 Sun 03:00PM7.5167.3
12/11 Sun 06:00PM6.62161.16
12/11 Sun 09:00PM5.91154.65
12/12 Mon 12:00AM4.56153.58
12/12 Mon 03:00AM3.77128.82
12/12 Mon 06:00AM4.21117.66
12/12 Mon 09:00AM3.378.35
12/12 Mon 12:00PM4.3862.05
12/12 Mon 03:00PM2.9352.02
* : UTC Timezone, Speed in meters per sec, and True Direction