# Onus IV Therapy + Longevity: Castle Rock > Small-scale health spa offers cozy seats, heated blankets, and entertainment options for a relaxing atmosphere. IV bags hang from a climbing rope pulley system, speeding treatment time significantly. Clean, comfortable environment feels welcoming and spa-like. Source: https://www.atly.com/location/Onus-IV-Therapy-Longevity-Castle-Rock - Address: 3990 Limelight Ave Suite D, Castle Rock, Colorado, United States - Phone: +17207653359 - Website: https://www.onusiv.com/locations/castle-rock ## What it is good for - Cool — 10/10 - Relaxing Spot — 10/10 - Comfortable — 10/10 - Cozy — 10/10 ## What people say - "They made me feel comfortable and safe every step of the way." - "It's so cozy and welcoming with comfy seats and blankets." - "The staff here is so professional and knowledgeable." ## Good to know - Members receive perks like a $200 credit for drips per month. - Members get a free drip for their birthday. - Elevating the IV bags with gravity reduces treatment time to 25 minutes. - You can use your membership for the whole family. - Prices are comparable to other IV therapy providers. ## Get this data directly This page comes from the Atly Places API, which scores close to 2 million places against more than 1,400 intents — "nice view", "work friendly", "gluten free", "dog friendly" — from what real reviewers say, with the statements behind every score. - **MCP server:** `https://agentic-api.atly.com/mcp` — connect it in ChatGPT or Claude. Nothing to install. - **Guide for agents:** - **OpenAPI contract:** - **No key needed to start.** `POST https://agentic-api.atly.com/v0/keys` with an email raises the quota. Coverage is densest in the United States, with pockets in Mexico, Israel and Thailand.