The first Duggar grandson is having a full day of firsts: baby Michael has his very first checkup—complete with his very first shot, meets his cousin Amy for the very first time, and is a guest at his very first Duggar birthday party.

Watch as the large family visits one of the largest waterfalls in North America -- Niagara Falls. But with Duggars' proneness to motion sickness ever present, will they enjoy their maiden voyage or will they rock the boat with seasickness?

The Duggars are roughing it - sort of! Jim Bob sets up a tent for an at-home campout, complete with S'mores and scary stories. But when the summer temperatures soar, will the family be able to stand the heat or will they have to get out of the tent?

Watch as Michelle demonstrates her homeschooling skills as the family prepares for their annual ATI Conference in Big Sandy, Texas. Then the Duggar kids put what they've learned to practice visiting a Spanish tutor and ordering in Spanish at a restaurant.

The Duggars are in Atlanta for a little work and a lot of play. After attending a speaking engagement, it's time for some fun in the water, jet skiing, tubing and wake boarding. But happiness turns to worry when one Duggar has a terrifying accident.

The Duggars are under water - in an aquarium that is! The Duggars continue their visit in Atlanta, Georgia with their first ever trip to an aquarium. Later, the family meets professional surfer and shark attack survivor Bethany Hamilton.

It's a full house when the Duggars visit their friends, the Bates! Watch as the two large families combine their 38 kids and counting for some fellowship and fun. And the Bates' oldest son, Zach makes a very special announcement.

It's Jim Bob's birthday and he is ready to celebrate! But before the party can start Michelle gives him a special gift, a trip to the allergist complete with several rounds of allergy injections.

The Duggars are discovering a new way to lend a hand! Watch as the Duggars take part in a Habitat for Humanity initiative to help rebuild homes devastated by tornadoes in Birmingham, Alabama.