So I have a class that has the following member variables. I have get and set functions for every piece of data in this class.

public class NavigationMesh
{


    public Vector3 node;
    int weight;
    bool isWall;
    bool hasTreasure;

    public NavigationMesh(int x, int y, int z, bool setWall, bool setTreasure)
    {
        //default constructor
        //Console.WriteLine(x + " " + y + " " + z);
        node = new Vector3(x, y, z);

        //Console.WriteLine(node.X + " " + node.Y + " " + node.Z);

        isWall = setWall;
        hasTreasure = setTreasure;

        weight = 1;

    }// end constructor

    public float getX()
    {
        Console.WriteLine(node.X);
        return node.X;
    }
    public float getY()
    {

        Console.WriteLine(node.Y);
        return node.Y;
    }
    public float getZ()
    {
        Console.WriteLine(node.Z);
        return node.Z;
    }

    public bool getWall()
    {
        return isWall;
    }

    public void setWall(bool item)
    {
        isWall = item;
    }

    public bool getTreasure()
    {
        return hasTreasure;
    }


    public void setTreasure(bool item)
    {
        hasTreasure = item;
    }

    public int getWeight()
    {
        return weight;
    }

}// end class

In another class, I have a 2-Dim array that looks like this

NavigationMesh[,] mesh;

mesh = new NavigationMesh[502,502];

I use a double for loop to assign this, my problem is I cannot get the data I need out of the Vector3 node object after I create this object in my array with my "getters".

I've tried making the Vector3 a static variable, however I think it refers to the last instance of the object. How do I keep all of these object in memory? I think there being garbage collected. Any thoughts?