I went to Kauai with my mom and sister for Mother's Day for a 4 day trip. I highly recommend renting a vehicle so you can see all the beautiful scenery Kauai has to offer. We drove through a tunnel of trees, overlooked the Waimea Canyon, and got to see a picturesque view (main photo) of several waterfalls in the distance. I've highlighted only some of what we saw and did, but hopefully this will make you want to visit Kauai!
Below is our itinerary for the trip (3pgs.) along with a map of where we went. To view each picture, right click and select "Open Image in New Tab."