The Sims 3 Island Paradise Guide
Unlocking Uncharted Islands with Maps and Hints
by Carl and Ricalynn
| Scuba Diving | Resorts | Mermaids | Discovering Islands | Map Fragments & Bottles | Lifeguard |

The Sims 3 Island Paradise Expansion Pack features a new town, Isla Paradiso, surrounded by eight uncharted islands that can be discovered. Each has a requirement to unlock it based on a gameplay feature that comes with the Expansion Pack. You'll have to do a lot of work to unlock them all on a single save file. Of course there is cheat to discover all islands, but this guide is directed at people who would like to unlock one or all of the hidden islands themselves.
About Uncharted Islands
These are seen in the ocean around Isla Paradiso. They're covered in a fog that will bump your camera away if you attempt to zoom in. On all but one island, sailing up to it is useless and a tooltip simply informs, "I wonder what's down there". With this guide, you'll know all you need in order to find out and see for yourself. Most of these Islands are good for private homes or Resorts, while others have treasure as a reward for revealing them.
When you fill the requirements, you discover one of Isla Paradiso's Uncharted Islands, and it is instantly owned by your Sim's Household. All discovered islands automatically become private lots. You can click the Island's icon in map mode to move to your new island to start a home, or convert it to a Resort lot. It's all up to you. Many Sims 3 players will unlock them and choose a favorite to start a new home or build a massive luxurious resort with an amazing ocean view.

Selling Uncharted Islands
You can sell an Uncharted Island for profit if you know that you will not be using it. After selling them, they become private lots unowned by you and you can do nothing with them. These are worth tens of thousands, so selling some of the Islands is definitely worth considering. In order to sell a discovered Island, use your Sim's Cell Phone, select Real Estate and Travel Services then Check Real Estate. Go to the Private Lots tab, select an Island, and choose Sell at the bottom. If a lot has been converted to a Resort from Private Lot, its sell value will plummet so only convert if you'll build a good resort there as you cannot change it back to a Private Lot.
Isla Paradiso Uncharted Island Map
Here is a map showing where you find all of the Uncharted Islands in The Sims 3 Island Paradise Expansion Pack. Each picture on this page is clickable, allowing you to see the Isla Paradiso Island Map in full size. Descriptions on how to unlock each, the rewards you get when finding an island are below the map. At the bottom of the page, you can Comment and share your tips for revealing the hidden islands faster!
| |||
| 1: Beryl Shoals | 2: Diver's Den | 3: No Trouble Atoll | 4: Cay to the City |
| 5: Refuge Island | 6: Mermaid's Secret | 7: Plunder Cove | 8: Plumbob Island |
Discovery Requirements & Island Finder Rewards
Size is the size of the lot in edit town but not exactly the build area you get to work with when building a home or resort. Build Area is the estimated size of the area that is able to be used when you first receive your island. We judged the islands and categorized them into Small, Medium or Large just based on this initial look. With some extensive editing, some of the small islands could be customized to hold a larger home or resort if that is your wish.
For instance, the island of Plunder Cove rests on a 64 x 64 lot with a large hill taking up much of that space. With the creative use of certain terrain tools, you could flatten out the top to create a Pirate Lookout tower. There's the option to flatten the whole lot and then use the soften terrain tool to reform the coast line to set up your very own hidden mermaid inlet. Or maybe you'd enjoy raising the terrain on the edges to create cliffs surrounding your very own waterworld home. With any of these tools and others available in Build mode plus some planned imagination, these little islands could be any of your big dreams.
1: Beryl Shoals
![]() | |
| Size | 64x64 |
| Build Area | Small |
| Unlock Requirements | To unlock this Island, simply take a boat nearby and it will be automatically discovered. It is the only island you can unlock through naval exploration. |
| Reward | You'll own an Island that could be your new home. Unfortunately, the only spawner is a Common Sea Shell spawner. |
2: Diver's Den
![]() | |
| Size | 50x60 |
| Build Area | Medium |
| Unlock Requirements | Reach level 10 in the Scuba Diving. Go to that Guide to learn more about this and the cave you need to enter in order to find the island. |
| Reward | Treasure Chest with $1200, gold, iron, palladium, and silver. Aside from that, there are a couple spawners. |
3: No Trouble Atoll
![]() | |
| Size | 60x60 |
| Build Area | Large |
| Unlock Requirements | Create a Five-Star Resort to unlock this island. |
| Reward | A huge build area to make a Mega-Resort and upgrade your business. |
4: Cay to the City
![]() | |
| Size | 30x40 |
| Build Area | Medium |
| Unlock Requirements | Rescue 35 Sims as a Lifeguard. This will take a long time, as CPR does not count - only pulling Sims out of the water, and the job can be slow-paced to begin with. |
| Reward | A decent Resort area. I saw no good Spawners. Shame, since this one takes one of the longer time investments. |
5: Refuge Island
6: Mermaid's Secret
7: Plunder Cove
![]() | |
| Size | 64x64 |
| Build Area | Small |
| Unlock Requirements | In order to gain access to Plunder Cove, you must assemble the four map pieces. Two can be found using the Scuba Diving skill, and I've got pictures to help you find those map parts in treasure chests. Trouble is, that is only two of the four you need. Afterward, you must get them from Sea Shell spawners. Given the annoyance of finding them, I created a page with information on getting the last two map pieces to unlock the island. |
| Reward | Plunder Cove contains a Treasure Chest that holds $1,200 Simoleons and a variety of colorful gems. Look for it hidden in the bushes on the Island. |
8: Plumbob Island
![]() | |
| Size | 64x64 |
| Build Area | Small |
| Unlock Requirements | Find a special Message in a Bottle that contains a riddle which leads to the Island. This can take a while, so I suggest you follow the link to a guide which will help you find that bottle. |
| Reward | Treasure Chest with $3,333 in it, an Evolution of the Plumbob painting worth $12k Simoleons, and a Plumbob Cut Rainbow Gem |
Isla Paradiso Map
Here is the same map from before, only with all islands revealed so you can see a full view of Island Paradise's World. Simmers who find all the Islands in IP will get many treasures, skill, and job experience along the way and unlock many spawner locations to find great collectibles.

Share Tips and FAQs (126)
Our Sims Forum is the place to go for faster answers to questions and discussions about the game. Use the form below to share your own experiences and provide helpful tips to other readers.
After some time has passed, you will get a moodlet with -5 mood which says that you need to go in saltwater. Of course, don't.
You can avoid swimming while traveling around isla paradiso if you choose "boat here" before you get to a different island, otherwise, as a mermaid, you will swim there by default.
After the -5 moodlet goes off, you will get another one, named "adapting to land" with -15 mood. If you let that go off too without touching the sea water (no swimming/snorkeling/scuba diving, not even quiting a boat and floating in it) you will turn into a normal sim.Another way to do it is to create a potent cure elixir, but I have not tried that method yet.
BTW: love your website ;)
OR
With a smartphone, click on "real estate and travel services... check real estate".This will open up a list with all the lots you own. To filter your results, discovered islands are on the fifth tab (private lots, square-with-a-star icon), along with other houses or houseboats you may own.There is a big coin icon under the list, which you can click to sell a lot after you select it.2. To build on a discovered island:Go to map view (press M), find and click on the floating icon of your owned private lot. Then, click "real estate... buy/build on this lot" to make a house.
You can even move there by selecting "move to this private lot" under the same menu of the map icon.
I am best friends with a mermaid it's trion king ( or smthn like that) but he is not showing me the island! I'm hanging out with him ALL the time and still nothing! And sometimes I give him time to talk but he dosnt take me !! So I tried another mermaid and still the same think happened! What do I do ?? ( and I don't like using cheats! )
Before I did so both my sims were best friends with one or two mermaids each and they hanged out alot. But it wasn't before I dived with one of them that they showed me.
Good luck!










Reply
Flag
139
107

