I’ve always loved “Swiss Family Robinson,” the 1960 film version, where a family becomes shipwrecked on an island, spends time together and learns to love their surroundings.

And they got to live in a cool treehouse to boot.

For families, Sanibel provides this sense of island adventure among natural beauty; it’s a place to relax and bond, a destination where the simple act of watching the sun rise and fall is an event to be savoured.

That’s my kind of vacation.

Sanibel and the surrounding area offer fun-filled activities—everything from shelling to sailing. Here are some suggestions on how to make lasting family memories.

Look for Shells

Sanibel has some of the best beaches in the world for shelling. The island’s unusual east-west orientation allows unbroken shells to gently be pushed up the sloping sea floor, right onto the beach. Nearby Captiva also boasts great shelling.

More than 450 species of shells dot the sand, and you’ll likely see people doing the “Sanibel Stoop” and “Captiva Crouch” to pick up special shells such as lightning whelks, alphabet cones, Florida fighting conchs and more. But the real prize is the rare brown speckled junonia, possibly a once-in-a-lifetime find.

Study tide charts and beachcomb around low tide when more shells are exposed. Winter storms churn the ocean, and shelling often is best right afterward.

Ride a Bike

Sanibel has 40 kilometres of flat bike trails, making riding an enjoyable activity for all ages. Paths meander along Periwinkle Way—the main street that features many shops and restaurants—and all over the island.

Several locations offer bicycle rentals, including Billy’s and Finnimore’s Cycle Shop. If you’re staying at a resort, check if resort fees include bicycle rental.

Eat somewhere fun

Sanibel and Captiva have lots of great dining options, but the pastel-coloured Bubble Room stands out if you’re travelling with younger kids. On its present site since 1979, this funky establishment features decades-old toys, moving trains and carnival knickknacks. But the most memorable reason to go is the monster-sized pieces of cake, temptingly presented on a silver tray by your “bubble scout” server.

The colourful Over Easy Cafe serves great corned beef hash, eggs Benedict, and biscuits and gravy for breakfast. The Island Cow—which advertises “udderly great food”—offers fun atmosphere that is perfect for tired kids after a long day at the beach.

Get close to nature

The 2,590-hectare J.N. "Ding" Darling National Wildlife Refuge features more than 245 bird species. If you’re lucky, you also might spot a manatee or dolphin in adjacent Tarpon Bay or an alligator basking in the warm sun.

Cars are allowed to drive slowly through the refuge. Hiking trails—varying from short walks to 6-kilometre jaunts—pass through mangrove forests, cordgrass marshes and West Indian hardwood hammocks. The visitor centre has educational displays, a gift shop and restrooms decorated with an underwater theme.

Get away for a day

As lovely as Sanibel and Captiva are, sometimes it’s fun to spend a day somewhere else. I booked two excursions with Captiva Cruises, which offers day trips to nearby barrier islands.

If you want to look for shells in an unspoiled setting, Cayo Costa State Park is a great day trip. The island has 14 kilometres of uncrowded beaches and acres of pine forests, oak-palm hammocks and mangrove swamps. Cayo Costa is accessible only by private boat or ferry.

Cabbage Key has hiking trails and a restaurant. Jimmy Buffett supposedly was inspired to write “Cheeseburger in Paradise” here, and surprise, you can eat a juicy burger, too. The walls are covered with dollar bills. Our tour guide claimed fishermen put spare money on the walls and wrote their names on it. That way, they wouldn’t go hungry at the end of a bad fishing expedition.

Learn about history

Thomas Edison’s impact on modern technology and society is astounding. In 84 years, he acquired 1,093 patents and helped usher in the phonograph, the incandescent light bulb and early motion picture cameras. In 1896, Edison met automobile manufacturer Henry Ford, and they became lifelong friends.

Both men were also smart enough to avoid cold winters. Visitors to the Edison & Ford Winter Estates in Fort Myers can see the gardens and outside of the homes—and the inside through windows—on an audio or a guided tour given by site historians. Admission also gets you in the Edison Ford Museum and Edison’s Botanic Research Laboratory.

See the Manatees

Otherwise known as sea cows, these slow 454-kilogram marine mammals eat six to eight hours a day, gobbling up 45 kilograms of vegetation.

Manatee Park in Fort Myers is a great place to get up close to these lovable creatures. From the water’s edge, it’s easy to spot them playfully snorting and submerging. But it’s even more fun to hop in a kayak and float among them. To get the most out of your visit, attend a free lecture about manatees.