My first kayak experience was 90 minutes with a tour guide. There were 2 double kayaks besides ours. I had trouble remembering paddle right, turn left etc. We (husband and I paddled) in unusually choppy waves for about 35 minutes to the cave. Unfortunately, my husband had seasickness. He's is more than double my weight but I paddled for both of us. The tour guide was speaking in the cave. I heard nothing because the echo and other kayaks coming and going. When we left the caves, husband was very nauseous and ultimately threw up 3 times over the kayak. I paddled for the 2 of us except for the last 15 minutes. I waived to the tour guide and he came back to give us a tow (I still paddled). The waters were still choppy, but I enjoyed the choppiness.
I had a good experience even if I didn't hear the guide. Husband, not so much.