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Chart Downloads
![]() CM93 chart vs a GE mbTile of exactly the same area. Which do you want? |
This is where folks can download our navigational charts. These are the charts we use for our own navigation.
We've published our .KAP files for several years, but in 2019 we started using mbTiles. While KAPs certainly revolutionized coastal navigation by showing us the real reefs, islands, and coastlines positioned exactly correctly, mbTiles have extended that. The geo‑registration is just as good (close to perfect) but we can now use many more sources than just Google Earth, like Bing and ArcGIS. We can even make mbTiles from nautical charts from CMap and Navionics. MbTiles is a database format that allows many zoom‑levels in a single mbTiles file, which improves the performance of navigation programs like OpenCPN.
Cruisers: We welcome other cruisers contributing their mbTiles to this collection. We'd like to make this page a repository of high‑quality mbTiles from all over the world, for other cruisers to download. If you have mbTiles you'd like to contribute, please contact us.
DISCLAIMER: We've done the best we can with these files, and we've used them ourselves for several years, but we can't take responsibility for them in any way. Prudent mariners will use all resources available to them, not just these electronic files. If you find issues with any of these, please contact us so we can repair whatever needs work.
Rallies: Cruisers doing the SE Asian rallies will want to download the following areas (at a minimum):
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Timor‑Sumba‑Wetar, Alor‑Komodo, Komodo‑Bali, Java (optional), Flores‑Java Sea, Kalimantan (only for the Kumai River), Banka‑Riau. |
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All the above plus: SE Indo, Seram‑Ambon‑Banda, Sulawesi South. |
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Kalimantan, Sulawesi NW, Sulawesi East, Halmahera, Raja Ampat. |
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Cruisers continuing Down Under will also want Seram‑Ambon‑Banda, SE Indo, and possibly Triton Bay. |
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Malaysian Peninsula (& Sing), and Thailand West Coast if you're going up that far. |
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All three of Malaysia, plus Indonesia Flores‑Java Sea if the rally goes to Anambas or Natuna. |
To use these mbTiles in OpenCPN:
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Our mbTiles include all zoom levels from Z10‑18. Each higher zoom level has 4x the resolution, and Z18 is high enough to see individual coral‑heads. We include the other zooms because it speeds up OpenCPN, & only adds a little bit to the file size. It means that when you're panning around in OpenCPN, it only has to extract the correct zoom level from the mbTile & slam it out to the display engine. If the required zoom level isn't there, then OpenCPN has to use a more detailed zoom‑level & then decide which pixels to display & which to throw out. This turns out to be relatively slow for OpenCPN, making panning slow & jerky, especially on slower computers. So we include all available zoom levels, preferring to trade file‑size for performance, since disk‑space is so cheap these days. We also include the entire coastlines of the countries we cover, since we don't know where we will choose to go, & we certainly don't know where our users will want to go.
But this does mean that our mbTiles are quite large, despite our attempts to include only relevant data. If you prefer smaller files, with fewer zoom‑levels &/or less complete coverage of coastlines, then there are other sources for free mbTiles. As of this writing (November 2023) there are at least 2 other sources that you might want to check out, & both of them are very experienced cruisers (& good friends of ours). They also include some areas that we don't cover yet (& both overlap with areas that we cover, to some extent).
We've put several hundred hours into this project. If you'd like to help us provide more charts for the cruising community, even a small donation will help pay our extra costs to host and download these large files. Just click the Donate button on the left. PayPal makes it very easy. Thank you! If you can't make a donation, please download what charts you need anyway. Our primary goal is to help make our cruising community safer, by using these charts. |
Click on the size of the file (in MB) to download that file.
Country (east to west) | Area (alphabetic) | ArcGIS | Bing | CMap | Navionics | Date | Made By | |
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Caribbean | Eastern Caribbean | 3,540 | 4,160 | 4,400 | 1,900 | 963 | Dec 21 | Ocelot |
Galapagos | All | 1,720 | 3,540 | 1,470 | 747 | 403 | Dec 21 | Ocelot |
Micronesia | Carolines Kirabati Marshalls Senyavin |
1,810 > > > 3,970 > > > |
821 All >> 3,730 All >> |
1,170 3,090 2,570 1,040 |
1,690 << All 1,560 << All |
224 < < < < 274 < < < < |
Apr 20 | Ocelot |
Solomon Islands | 1 North 2 East Atolls 3 Choiseul 4 New Georgia 5 Santa Isabel 6 Malaita 7 Guadalcanal 8 South |
All
3,620 |
Apr 20 | Ocelot | ||||
PNG | Admiralty Islands Louisiades Louisiades Talgula Manus NE Mainland New Britain North New Britain SE New Ireland NW SE Triobrand Trob Solomon Sea |
> > > > > > > > > > > > 2,470 2,290 > > > > > > > > > > > > > > > 1,910 |
All >> All >> All >> All >> 2,590 2,130 All >> All >> All >> All >> All >> 1,780 |
2,830 3,200 2,980 1,980 991 892 2,660 4,730 1,210 5,000 4,070 213 |
<< All << All << All << All 632 524 << All << All << All << All << All 639 |
< < < < < < < < < < < < < < < < 162 260 < < < < < < < < < < < < < < < < < < < < 124 |
Apr 20 Apr 20 Jul 19 May 19 Apr 20 Apr 20 Apr 21 Apr 21 Apr 21 Apr 21 Apr 21 May 19 |
Ocelot |
Palau | All |
1,740 (all) |
Apr 20 | Ocelot | ||||
Indonesia | Alor‑Komodo Banka‑Riau Cenderwasih Bay Flores‑Java Sea Halmahera Java Kalimantan Komodo‑Bali Papua South Papua SW Raja Ampat SE Indo Seram‑Ambon‑Banda Sulawesi East Sulawesi NW Sulawesi South Sumatra North Sumatra South Timor‑Sumba‑Wetar Triton Bay |
2,550 4,580 4,390 4,650 3,800 3,470 5,120 2,660 1,920 2,140 4,580 4,900 2,720 4,040 3,320 4,540 3,910 3,330 3,060 > > > |
2,880 4,920 4,850 4,410 3,930 3,610 5,300 2,980 3,200 3,590 4,460 2,820 2,840 4,480 3,680 5,070 4,150 3,820 3,590 All >> |
2,390 3,400 503 2,610 2,470 3,440 3,320 2,180 1,810 1,250 2,250 3,050 2,160 2,990 2,790 3,140 3,040 2,520 3,070 3,920 |
588 1,140 85 1,480 248 1,910 261 393 1,580 1,070 446 694 215 703 479 981 304 845 650 << All |
275 824 21 756 387 714 753 289 259 202 556 435 242 483 498 515 489 421 302 < < < < |
Aug 21 | Ocelot |
Philippines | Mindanao East Visayas South Visayas North Luzon Palawan SW (Abu Sayyaf) Spratly Islands |
6,780 6,750 8,670 17,090 4,530 5,450 > > > |
6,140 6,120 8,230 16,050 4,920 4,820 All >> |
2,780 2,690 5,240 8,570 2,340 2,780 3,140 |
1,090 1,380 2,470 4,060 1,440 1,230 << All |
416 559 998 1,790 745 540 < < < < |
Jan 22 Mar 20 Jan 22 Apr 22 Jan 22 Jan 22 Oct 21 |
Ocelot |
Malaysia (& Singapore) |
Peninsula (& Sing) Malaysian Borneo E Malaysian Borneo W |
3,680 2,850 3,450 |
3,560 3,120 3,370 |
2,720 1,730 2,530 |
1,040 1,420 (incl^) |
636 515 413 |
Oct 21 | Ocelot |
Thailand | West coast | 2,390 | 2,320 | 1,770 | 704 | 313 | Apr 20 | Ocelot |
Sri Lanka | All | 2,220 | 4,300 | 2,050 | 1,330 | 382 | Nov 21 | Ocelot |
Maldives | North South |
1,770 3,090 |
2,500 2,750 |
1,490 2,370 |
674 1,280 |
115 254 |
Apr 21 | Ocelot |
BIOT | Chagos |
942 (all) |
Apr 20 | Ocelot | ||||
Seychelles | All |
2,750 (all) |
Nov 21 | Ocelot | ||||
Madagascar | North West | 4,200 | 5,760 | 2,610 | 1,790 | 694 | Nov 21 | Ocelot |
Comoros | All |
2,780 (all) |
Nov 21 | Ocelot | ||||
Kenya | All |
3,830 (all) |
Nov 21 | Ocelot | ||||
Tanzania | All | 2,680 | 3,660 | 2,690 | 1,130 | 425 | Nov 21 | Ocelot |
Mozambique | North Bazaruto South |
2,820 2,090 1,340 |
4,280 5,590 2,790 |
2,620 2,240 1,280 |
1,100 2,090 683 |
367 390 223 |
Nov 21 | Ocelot |
Some notes on these files:
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