We did the 7 hr Niihau and Napali snorkel tour in Sep 2021. Amazing experience and would highly recommend.
Josiah and Jess were great crew members, very friendly and helpful.
We had amazing views of Napali coast half the way to Niihau, which lived up to the hype.
Lunch was turkey wraps, veg wraps, noodles, and fresh veggies. They ran out of veg wraps unfortunately. I'd recommend keeping some extras for an increasingly veg/vegan tourist population.
The snorkeling spot at Lehua was amazing, very clear water and we saw quite a few fish. There was a monk seal that was making rounds close to us as well. We saw bottlenose and spinner dolphins that swam up right under the boat on the way to Niihau, and spent several minutes near us, which was spectacular.
The rode back was choppy and led to a few people getting sick. Take a motion sickness med the night before, and then the morning of, to avoid getting sick (the night before was suggested by a dive instructor).
Overall, phenomenal experience with the Napali coast views and the dolphin/monk seal viewings.