Cave Diving, Cave Exploration and Cave Mapping in Yucatan, Mexico
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Dive Number 400! Rebreather Cave Dive at Grand Cenote with John.

John at the trusty dive truckToday was my 400th logged dive. John took the early ferry over from Cozumel. I picked him up and we left for the fill station. At the fill station I asked John to review all of his gear and let me know if he had everything he needed. I told him I didn’t want to get to Tulum and find out we were missing something. He assured me everything was there and we were ready to go.

John getting ready.As luck would have it, once we arrived at Grand Cenote and started to assemble our rigs, I realized I forgot John’s bailout regulator. I was supposed to loan him one of mine, and since it wasn’t part of my kit, I totally spaced on it. I jumped in the car and headed over to Xibalba Dive Center in town and Robbie kindly assembled a regulator and rented it to us. I was back at the Cenote in 10 minutes. Problem solved and we were back in business.
My perfered bailout package.John and I decided to do one long dive. The plan was to head down to Lithium Sunrise and then return to the first arrow and make the shortcut jump down to Cenote Ho Tul and Cuzan Ha. The dive went very well, except that when we got to the second jump on the way to Lithium, there was another team with gear. I started to install our gear and realized I was in the wrong position. So I picked it all back up and re-laid the gear in. I really like nicely placed lines. Messy lines will make for a messy exit and they look hideous. This debacle wasted about 6-7 minutes. I hate to be robbed of the time, but I could just hear Patrick correcting me about my line placement.

Grand CenoteTotal run time for the dive was 2:32 minutes. John seemed really happy with the dive. He pointed out all the hand and body prints and I told him it is the result of being on the top ten list of places to dive. You really have to get off the beaten path and away from the typically guided locations to find pristine cave.

Cooling off in the refreshing cenote water.Diving the Megalodon has been great! In the last 21 days I put in 15 hours on the unit over 10 dives. I finally felt comfortable again, the last couple of weeks have been full of setup changes and discomfort. The only thing that remains is to move the clips up the 40cuft cylinders so they pull a little tighter into the body. I hate the feeling of bottles swinging forward and aft with each stroke. Just feels like it is robbing energy.

The result of a great day of diving.It was a pleasure to dive with John and I look forward to diving with him again. Just take a look at the picture of the scrubber. That is the evidence of two days of great diving. I love the satisfaction of pulling a hot scrubber out and checking to see how much I have burned through.


1 John K { 04.27.08 at 5:13 pm }


It really was a great dive and I appreciated all your help. I think it was quite enjoyable for you also on the Meg since I could clearly hear you humming some tunes into the loop during the dive. Its always nice when you do a dive with two rebreathers and the only issue we had is both forgetting the BO reg and not having enough time to to extend the dive longer. I was having so much fun I could have gone for another 2 1/2 hours.

I am already looking at how I can come down for two weeks of nothing but Cave diving in the future.


2 Hans { 04.28.08 at 10:00 am }

Glad you enjoyed it! I really enjoy it when I have the opportunity to dive CCR. Singing in the BOV is a favorite past time of mine. Especially Christmas songs.

We will be here all summer. If you want to make a quick trip down, Thursday morning to Monday afternoon is a great way to pack in 6-7 dives. And it isn’t too disruptive of schedules. Let me know when you want to come back.