Add outdoor lighting and some obvious cameras along with some inconspicuous ones.

Even if the debated bills get passed and cities can control STR's, the weather, low property taxes, outdoor activities, etc. will still probably make STR's viable, but not as much as before. 

I feel like it has a lot to offer in terms of water access and outdoor recreation.

There is still is a market for Dells Airbnb during winter as there are outdoor activities like snow shoeing, cross country skiing, etc. 

. $70k total: Build an in-ground pool for 50-60k, add a nice deck & outdoor tiki area etc.

Shorter-term lease options, including month-to-month, are available, and will be charged additional monthly rent (up to 125% of long-term rental rate) and/or a non-refundable convenience fee of $300.Please review the lease agreement prior to applyingSmoking Policy: Our rentals are strictly non-smokingTenant’s guests who smoke should only smoke outdoors, at least 25 feet from any door or window and not on the propertyTenants will be fully responsible for damage caused by them or their guests during their tenancyPet Policy: If pets are allowed, pet deposit may equal up to 100% of security depositPet rent of $30 per pet (up to a maximum of $90 a month) may be appliedMaximum 3 petsBreeds not allowed by insurance include, but are not limited to: Animals with a previous bite history or vicious propensities, Dobermans, Chows, Rottweilers, Akitas, American Staffordshire Terriers (Pit Bulls), attack dogs and Wolf Hybrids, (or any mix thereof) Ostriches, Emus, Horses, Farm or Ranch animals, or any type of wild exotic animals or pets.

In Arizona, an outdoor unheated swimming pool will add more value than an outdoor swimming pool in Alaska, since an evaluation of market data will show that buyers are willing to pay a bit of a premium in Arizona, but not in Alaska (in fact, the market data might say that an outdoor unheated swimming pool HURTS value, in Alaska).

If the tenant wishes to keep any outdoor pets, I require (with an addendum to the lease) that they be kenneled at the tenant’s expense and that they obtain (and show it to me...I already have my own copies on record) a printed copy of and follow all local laws (for feeding, watering, leashing, and sheltering the pet) and ordinances pertaining to pet ownership.

It has A/C, WiFi, a large deck, patio, grill, enclosed outdoor shower, waterfall, and fire pit.For a property that rents for $2500 during high season, do the below expectations look somewhat reasonable?

Build an outdoor shower?