| 21. | She was converted to a Fleet Snorkel Submarine in 1966.
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| 22. | It is possible to snorkel in the lagoon with approximately 1500 fish.
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| 23. | The submarine could also run its diesel using a snorkel.
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| 24. | This spurred the development of modern swimfins, diving masks and snorkels.
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| 25. | A diving snorkel can have a sump section located below the mouthpiece.
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| 26. | It is a good place to swim, snorkel or scuba dive.
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| 27. | Here, 17 Dutch and 1 snorkel here, a Dutch invention.
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| 28. | It is possible to kayak and / or snorkel here.
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| 29. | Snorkel sampling is a noninvasive way to sample the desired fish species.
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| 30. | Dive, snorkel, fish, swim or sail.
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