The Salmon of Doubt

There were about ten of us on the dive boat the following morning. The hotel is so spacious and rambling that you don’t often get to see many of the other guests, but it was interesting to begin to realise how many of them were Japanese. Not only Japanese, but Japanese who held hands and gazed into each other’s eyes a lot. Hayman, we discovered, was a major Japanese honeymoon destination.

The Sub Bug sat up on the back of the boat, and I sat looking at it as we made the hour’s journey out to the reef. Hardly any of the Barrier Reef islands are actually on the reef itself, except for Heron Island.

You have to get there by boat. I was very excited. Apart from a couple of refresher dives in pools, this was my first proper scuba dive in years. I absolutely love it. I’m one of those people who has been tantalised by the flying dream for years, and scuba diving is the closest thing I know to flying. And for someone who is six foot five and less sylphlike than, to pick a name at random, the Princess of Wales, the sensation of weightlessness is an ecstatic one. Also, I usually vomit on the way back, which is a good way of working up an appetite.

I wanted to do a regular dive first to get my bearings. Two at a time, we clamped our masks and regulators to our faces did the Big Stride off the diving deck at the back of the boat; and dropped into the water in an eruption of bubbles. A moored dive boat always attracts the attention of a lot of local fish who expect, usually rightly, that they will get fed. The ones you’ll get to see if you’re lucky are the Maori wrasses, which are extraordinary pale olive-green creatures about the size of a Samsonite suitcase. They have large, protuberant mouths and very heavy protuberant brows, but the reason for the name Maori, an Australian will assure you apologetically, is some paintlike markings on their brow. Australians are not racists anymore.

There were quite a few wrasses around the boat, and I made the mistake of getting between a couple of them and some pieces of bread that someone had thrown from the boat. The animals blithely barged past me to get at the food. I sank down to the reef in the huge space of water and light beneath the boat, and drifted easily round it for a while to get used to being underwater again, then came back to the boat to divest myself of my scuba tank and collect the Sub Bug. Together, Ian and I hauled it into the water. I got myself into position behind the thing, and started it up. One of the curious features of scuba diving is that your suit and equipment seem so heavy and cumbersome and unwieldy on the surface—which is one of the things that tend to frighten beginners—but once you descend below water level, everything begins to flow smoothly and easily, and the trick is to exert yourself absolutely as little as possible, in order to conserve oxygen. It is, almost by definition, the least aerobic sport there is. It won’t make you fit.

At first I was disappointed that the Sub Bug wouldn’t move me faster than I could swim. We were gently pulling our way down, but as I started to get used once more to the slowness with which everything happens underwater, I began to relish the long, slow, balletic curves it let you make through the water, stretched out at full length behind it instead of swimming in the normal position with your arms by your side or on your chest. Following the contours of the reef became like skiing in ultra slow motion—an almost Zenlike idea. I began to enjoy it a lot, though after fifteen minutes of experimenting with it, I began to feel I had exhausted its repertoire and began to look forward to swimming under my own power again. I suspect that it’s probably a machine best suited to people who want to experience a dive but don’t want to bother with the business of learning to use buoyancy jackets and so on.

I returned to the boat and we hauled the thing back up out of the water. Well, I’d driven the Sub Bug.

But over lunch I was worried about the total collapse of my absurd comparative test-drive plan, and discussed my thoughts with Ian and Jane.

“I think we just have to think about the comparative test drive on a kind of conceptual basis,” I said.