If you swim in a river or lake, be sure to investigate what is below the water surface.

如果你在河里或者湖里游泳，一定要弄清楚水面下有什么。

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I don't think it is safe to swim in a lake.

我认为在湖里游泳不安全。

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So, here's a regulation I hate: you're not allowed to swim across the lake anymore in Massachusetts state parks.

我倒是讨厌一条规定：禁止在马萨诸塞州州立公园的湖内游泳。

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After a late-afternoon swim in Lake Maracaibo to cool off from the sweltering heat, we got our first glimpse of towering clouds amid the glow of the setting sun.

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From here, either enjoy a swim in Lake Galilee (from one of the many pebbled beaches or pay to use the facilities of Kibbutz Ginosar, 2km east around the lake).

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The 62-year-old Nyad -- who completed her Lake Ontario swim in 1974 at the age of 24 -- was a third of the way to her goal as of Sunday evening.

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