How to create Wavy Surface with Solidworks?

10 Step to Wavy Surface
(it's one of ways)
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Step 1:
make plan
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Step 2:
make other plan
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Step 3:
make profile curve 1
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Step 4:
make profile curve 2
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Step 5:
make guide curve 1
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Step 6:
make guide curve 2
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Step 7:
make guide curve 3 Plan
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Step 8:
make guide curve 3
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Step 9:
make Wavy Surface
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Step 10:
The result