FloatableWater.cs

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(BoxCollider))]
public class FloatableWater : MonoBehaviour {



    //wave parameters
    public float waveFreq1 = 0.0f;
    public float waveXMotion1 = 0.08f;
    public float waveYMotion1 = 0.015f;
    public float waveFreq2 = 1.3f;
    public float waveXMotion2 = 0.025f;
    public float waveYMotion2 = 0.10f;
    public float waveFreq3 = 0.3f;
    public float waveXMotion3 = 0.125f;
    public float waveYMotion3 = 0.03f;

    //how strong under water drag is compared to air drag
    public float waterDragFactor = 8;

    // Use this for initialization
    void Start () {
        collider.isTrigger = true;
    }

    // Update is called once per frame
    void Update () {

    }
}