The investment plan will look at what type of investments to use, the appropriate risk levels, the types of plans to use (RRSPs, RIFs, TFSAs, Open or Taxable accounts, etc)
Investments outside of real estate (see real estate plan) are an important part of a financial plan. Real estate is a more illiquid investment as it can be more difficult to sell in a shorter time frame. Other investments can provide more liquidity.
The investment plan should also provide a goal rate of return for the investments that can be measured against the actual performance and an agreed upon market benchmark return.