crests period, frequency, wavelength..

A woman is standing in the ocean, and she notices that after a wave crest passes, five more crests pass in a time of 62.0 s. The distance between two consecutive crests is 36 m. Determine, if possible, the following properties of the wave.

need to find these:

period s

frequency Hz

wavelength m

speed m/s

amplitude m

also, not sure why the speed is not .5806 m/s, maybe i'm not doing this right. meters/seconds?

and i know that the frequency formula is: 1/T

not sure on the calculation for the period.

anyone who can work some of this out please.